I have a SW Esprit 120ED for a couple of years. In the beginning to observe and now for imaging. There was always an issue with the focuser. The scope has two "pads" inside the focuser, hold by four screws, two on each side of the focuser. After awhile I realized that one or both pads were loose inside the focuser. SW technical assistance recommended that I should remove the focuser to check it, what I did. One of the pads were loose...I fixed it the best I could.
I wrote to them that I was not happy, at all, with the focuser quality. Then comes the wierd thing: I was recommended to switch the focuser by a Feather Touch or other options...
I was so frustrated with the focuser that I had ordered a Moonlight before such "wierd advice". Wierd at least for me. Though a honest, advice, I must agree. A SW Esprit 120ED brand new is about $3,200
; not cheap at all. And I am outside the US, what make things more expensive.