Pros:
1. Variety. Oh man, does this course have everything! Elevation change on almost every hole, some of the riskiest pin placements I've ever seen, unique rock gardens in play on several holes (and scattered throughout this whole wonderland), many blind holes, just an absolutely perfect balance. No hole feels similar to any other. Even the more open holes here present significant (and sadistically strategic) natural and/or man-made (rock stacks) obstacles. Hole #4 is the first real "Wow, holy sh*t! Look at this hole!" kind of hole--not that the first 3 aren't cool, but 4 is where the Flipping really begins. Hole #7 is an awesome downhill-to-uphill hole with significant obstruction in the valley you THINK you can shoot over, but probably you'll get taken down in the valley and be left with a crazy uphill shot. Hole #10 was the only deuce of my round, a shot I amazed myself with on this blind uphill-to-downhill 180' hole to a basket protected by several mounds, with so many hills and valleys in this area that literally ANYTHING can happen to a disc that lands wrong. So many scenic vistas from the tee, so many spots you'll just need to stop and soak it in. Looking at my dismal score on my scorecard while coming into Hole #17, I thought, "Hey, the last 2 holes are both under 200 feet. I should be able to make up some strokes!" Yeah...it didn't work out that way. Hole #17 is yet another blind uphill into woods with a basket precariously placed on a sharp downhill slope, and Hole #18, a 195' steep downhill right dogleg, can be a frustrating finisher to someone who is predominantly RHBH...my Comet anhyzer didn't work, so for a mulligan I threw a RHFH Destroyer and again found trees. I ended up trekking back up this hill a few more times to play this finisher after our round while we just chilled out.
2. Maintenance. First off, I give huge props to Bill for keeping this baby in such pristine condition. If I had Flip in MY backyard, chances are I'd play and neglect the upkeep! It's awesome to talk to someone who's so passionate about disc golf--enough to develop his private land into DG heaven and open it to disc golfers!--yet realizes that this legacy he's created requires hard work, and he seems proud of what he does. I'm not sure I could handle only throwing 1 round a week here like Bill does, and I applaud him for his dedication. There are abundant trash cans, no litter.
3. Nice tee markers and super-grippy concrete tees (long tees only). The concrete tees include ample follow-through space as well...there is a black line on the tee that indicates the end of the teeing area, with the semicircular section beyond the line used for following through. There are am tees and junior tees on each hole, as well, though the am tees don't seem to get a lot of use, and the juniors even less so.
4. Navigation. Maps/scorecards near the shack by Hole #1, signage at the intersections, really no issues getting around out here.
5. Brooms at each tee for clearing off sand and dirt. This part of Michigan is very sandy, so these things will come in handy on occasion. It's nice to see them in abundance, ready to spring into action wherever the need should arise!
6. Shackage. Nice little chill-out patio by the parking area, and 2 shacks on the course (one by the intersection of Hole #8 and #14, and another by #2A and #5A). While you probably won't be physically exhausting and needing a rest at these points (Flip doesn't do you like that), you should chillax, sign the "guestbooks," talk to people passing through the intersections, take some photos, and then move on. Flip's got more in store for you.
7. The feeling of seclusion--and almost elitism if you're not a local Flippie--while being here is indescribable. If there is a "zen" disc golf experience, this is it.
Cons:
Surprisingly, I am going to list a con. Obviously it doesn't affect my rating since this is without a doubt a 5-disc course. I played this course with my wife, and she opted to play the am tees...these are indicated by rocks on the ground (specifically, 2 rocks simply to indicate the end of the tee). In several places, we could not figure out where she was supposed to shoot from as there were no noticeable rocks in the areas where the tees presumably would have been. In most cases, we ended up finding what "looked" to be a tee area due to being a bit worn down, and judging whether it was the difference in distance from the long tees using the scorecard, I think we figured most of them out. I did talk to Bill after our round and mentioned this, and he is completely aware of the issue and said that people have been grabbing those rocks and either throwing them or adding them to the rock piles scattered about. So again, it's a con if you're going out to play Flip with anyone intent on playing short tees, but it's not a con to the overall experience since my wife still had a blast (her favorite course ever!) even with this minor frustration. Hopefully more permanent tee indicators can be placed in the future.
Other Thoughts:
Wow. This place is perfect. It took me and my wife about 3 hours to "throw a round," although that includes chilling out at the beginning just soaking in the fact that we were there, and probably over an hour during our round stopping and taking photos and looking at the landscaping, chilling at the shacks...there's just not too many more words I can come up with here. Go. Get Flipped. Flip your friends. Flip your family.
Treat this place with the utmost respect (like you're young Skywalker and this course is friggin' Yoda), and when you go back home try not to compare your local courses to Flip 'cause there is no comparison.