It's not for everyone that's for sure.
When I decided my D90 had to go and the XT-1 replaced it, I didn't have any budget left for some sexy Fuji glass.
I bought 12$ adapters off ebay and slapped my dads old Canon FD lenses (28 f2.8, 50 1.8 and 100-200 5.6) on it. The focus peeking isn't perfect on Fuji and it takes time to nail it. It's a freeing experience IMO.
Images don't need to be tack sharp to be good. I take my time ALOT more and treat my XT-1 like my AE-1 (film camera...): slow and methodical. I don't shoot sports so it suits me well.
Not for everyone, but it's for everyone's budget. Try it at least!