The last time I bought a hi-fi, I compared the Linn Majik CD/Majik I to the bottom of the range Naim equivalents. There was not much in it in terms of sound quality, though in blind testing I picked Linn over the Naim three times out of three, therefore I bought the Linn. Recently I sold the amp and bought a Majik DSI, convincing myself I was saving money. I'm very pleased with it.
If you have a turntable, the Majik has a buiilt in MM Phono Stage. The Uniti doesn't.
The Uniti does appear to be the more "complete" product though, and would probably be the one I would recommend to a friend.