Personally, I thought it was boring. Low energy.
I was not engaged at all, and I WAS somehow put-off by his approach. Yes, I would agree about "his ego." I wouldn't have described it exactly as such, but that definitely came through. Yes, ...I was aware of some snark post-Ham, but to be fair, hang around here long enough and you'll eventually hear that about everyone except for Angela Lansbury and Dolly Parton. And a strong ego is no doubt necessary for success in the biz. But it felt dismissive. Perhaps his insistence in non-standard arrangements and lack of patter or crowd-pleasers, was somewhat responsible for this impression. (or indicative of arrogance)
I'm glad I saw it. It wasn't a waste and I did really enjoy some songs, but all-in-all I was disappointed. Given that it was free to see, I ain't complaining, but won't bother paying bucks to see him at Feinstein's.