Lots of good advice on here. I'm in the process of migrating to X32 but will still use the DL1608 for my smaller gigs and as a backup. I bought an X32 Compact 18 months ago and used it for a couple of bigger gigs, the rest of the time it resides in my studio. Back in May I had another big gig where a stagebox would have been useful so I bought an X32 Rack, the gig got cancelled so the Rack has remained unused 'till now but I'm determined to get into it soon as the extra features will be beneficial.
Impressions so far :-
I love MF Classic (and have just installed MF4 to try), the X32-Mix app is not as nice to use... But, it is perfectly functional.
The fx on the X32 are very nice, I use the DL fx happily enough live but they are not as good as the X32.
It's great having real faders when I take the Compact out (but I'm a bit 'old school')