The course is relatively flat (which can be welcome when doing a doubleheader with Brandywine).
Open front eight (now).
Very pretty setting.

The new holes nine through nineteen are awful. Perhaps these changes are so new that there hasn't been time to do other-than-wood-chip tee pads, but...
The backside layout is tight without being technically interesting or challenging. There's an OB wall and later an OB (I assume) fence that will be problematic for errant throws. I played the new layout in December, so the trees weren't leafed out and the undergrowth was down. I can imagine that in the summer these holes will be borderline problematic and probably full of poison ivy, ticks, etc.
A couple holes overlap other holes, so I expect there will be conflicts and congestion.

I used to love playing Bellevue. It wasn't a hard course, but it was pretty, a good walk, and one had to pay attention to one's game a little.

But I'll never play it again after these changes. It's no longer fun. There's no reason to go there.