I've been using this instrument for two weeks now, playing it for 5-6 hours in total.
The sound is excellent in the A-G'' range. G and below seems to be a bit off, I think it's a tad too low. Beyond G'' it becomes quite thin, however, skill (or the lack thereof) could have a significant part in that.
The trigger cork fell off in transit, but that was trivial to fix with a drop of glue. Otherwise the build quality is solid (including the the other corks). The valves are excellent, quick and easy to press. The slides are very difficult to remove, but I expect that to get better over time.
Figuring out a good way to hold the instruments was quite a challenge. This is the first rotary I've ever played, so I don't know if this issue is particular to this model or universal to all rotaries, but it's quite difficult to find a hold on the horn that is both stable and doesn't put too much strain on your fingers. I eventually managed to fulfill both criteria to an acceptable level, but it's definitely not as comfortable as a piston instrument.
Overall, I'm satisfied with the purchase. There is some room for improvement here and there, but I doubt you could get anything better in this price range.
