I used a MOTU 896HD for years. It worked and sounded great. A couple of channels were beginning to go so I took the plunge and picked up the UFX II. I've had my eye on it for years.

The features that come with the UFX II are stunning coming from the MOTU, but more importantly, the sound is magnificent. There was nothing wrong with the sound quality of the MOTU, but when you hear the UFX it is a clear step up in many ways. The preamps are that good.

There have been zero issues with USB, and not having to worry about firewire or thunderbolt going out of fashion motivated me to go USB. I say later for all that. USB will always be here!! I want to invest in long-term solutions, not a fad technology.

Took very little time to hook up and have it working.

Totalmix is so well thought out and is easy to use, and the ipad integration just made it perfect for me. It was easily the best gear purchase I've made in many years. Yeah maybe I'm a fanboy of RME, but that's how good their engineering is. They won me over.

We did not block 'UFX' intentionally, so I have no clue why that one doesn't work ('UCX' for example works). But this forum's software search function is not good anyway, it gives better results to use Google and restrict the search on this forum.