A good instrument and value for money. Looks great. Good sound. I bought it to play in a street band, as it has a great "wow" factor! I have been playing it for a few months. Everyone loves it!
Well made. It has initial brass tubing and valves fitted to widening fiberglass tubing and bell. All ok. The bell is secured to the main body by 3 screws. All valves have tuning slides, and there is a main tuning slide with spit valve. The whole instrument is held together securely by stays.
The 4th valve is great if you want to play really low. I chose this model as I normally play bass trombone, and the 4th valve is like having an F key on a trombone.
With practice I have a range of all notes from pedal Bb (Bb0) up 3 octaves to Bb3.
I find the 2nd valve a little bit sticky and have yet to find the best lubrication for it. The main problem seems to be that this valve collects most of the condensation. To empty, it is necessary to turn the instrument upside down, press the valve down, and remove the tuning slide associated with the valve (this is easily done without taking the instrument off). Also, notes played with 2nd valve down are a bit flat and have to be lipped up.
Generally, I'm very happy with it.