[LAU] ADAT & MIDI

Hi, I'm looking for a replacement of my RME HDSPe AIO, since it's not really supported for Linux, only 2 out of 8 ADAT channels are accessible, xruns, even with too much latency, Ardour ALSA, without jack doesn't work. In addition this device must work with an iPad 2 and newer, too, so I read http://audio-mastering-studio.blogspot.de/2014/05/ios-compatible-audio-inte… and found the following device, in a price range cheaper than a RME Babyface. The device needs to provide ADAT and MIDI. I already read old Linux related posts, however, has anybody used one of the following devices with Linux? Arturia Audiofuse 599 € Focusrite Scarlett 18i8 349 € Focusrite Scarlett 18i20 489 € PreSonus AudioBox 1818VSL 399 € Could somebody recommend another device providing ADAT and MIDI less expensive than a RME Babyface? I suspect Behringer devices at least suffer from short durability. Regards, Ralf