I only recently acquired a viola and didn't realise my violin shoulder rests would not fit. As I've never played a viola, and wasn't sure if I would sustain the interest, I didn't wish to spend a lot of money on a high-end shoulder rest. I'm very satisfied with the Artino rest. It has very good adjustment for width. I'm still varying the adjustment for the feet to find a position that I'm comfortable with. This may, in part, be due to my inexperience with a much larger instrument than that to which I'm accustomed. I suspect that professional viola players or experienced amateurs may well opt for one of the more expensive high-end rests. However, for my purposes, the Artino is good value for the money I paid and is all that I currently need to become familiar with a larger instrument. Finally, the Thomann service from order to delivery was excellent as usual.