I received my TF10 remolds last week so here are my impressions. I ordered solid black and I have to say they aren't of UM quaility as there are inconsistencies for sure with the acrylic. The left ear seems to fit well and pretty flush, while the right here loses it seal and pops out. And it seems to sit quite a bit further out the ear than the left. Definitely going back for a refit.
As far as sound quality, they sound pretty much the same to me. However, I am a singer/guitarist and use them for monitoring purposes. I never used the TF10 to monitor even when I had them before. I used a UM1 and I have to say, totally different. Great cause you get some fullness and some bottom end, but for singing purposes, I have to say I prefer the UM1. I just need something with a little more mid-range. Just my thoughts.
Overall, happy with the customer service.