This is really good, particularly if you guys are practically sight reading as you imply. That said, the first minute seems random, you are playing at instead of with each other. The violist finally makes a breakthrough at 1:34, and his unison with the clarinet at 1:37 finally gives the performance a flow and a real sense of dialogue between the three of you. There are some bad intonation moments, nothing excruciating but still not great. The clarinetist has a lovely tone but most of the intonation problems come from him; he physically moves his body into every note and it seems to affect his pitch. He doesn't have to physically dive into each phrase like that. The violist is top notch except for a few questionable notes. You are an excellent ensemble player, you are always supporting them, never in the way. Your tone could be fuller and more expansive but that's the piano, one of those awful 5'7 Yamahas, I believe. When you have the main line you sometimes clip the end of phrases, such as at 0:19 but overall your playing is good.
Anyway once it gets rolling this is an excellent performance particularly on such short notice. I'm sure it will settle in because you are all excellent ensemble players who pay attention to one another. Thanks for posting this, it took me back a few years. I played several of these pieces with my trio in college as well as the Kegelstatt and the Schumann Marchenerzahlungen, and a cool little Hindemith/Weill style piece "Kleines Konzert" by Alfred Uhl; you should check out that last one it's a great piece and hardly ever played; a good closer. Please post the Kegelstatt, I'd love to hear it. Clarinet Viola and Piano rulz,

It's my favorite trio combination, wish there was more literature for it.