I own the Delta, you ought to read thetinman's follow up review, he's (mostly) spot on. I had some HORRIBLE blade alignment out of the box, but after a call to the Delta line, they sent me a powerpoint document on how to adjust blade-to-miterslot squareness. One giant 2×4 and a deadblow hammer and an hour later and I had it within .005 which is good enough for me. I insisted on buying new if it wasn't a cabinet saw, and there weren't any good used cabinet saws in my area, so with Ridgid out due to the blade height problem and an inferior fence to the Delta, I picked it up for 540 after mover's coupon at the big L.
You're really comparing apples to oranges, as you're comparing one of the best jobsite saws to a full-size contractor saw. The Delta will give you longer crosscut ability, a superior fence, and a fullsize table to work on. The downside to the Delta is I can no longer stow it on top of a bench (I used to have a DW745) and therefore I've lost the ability to park BOTH cars in the garage - a 'meh' for me. The full size table of the Delta has pretty much retired the use of my miter saw, and I've attached a Bosch RA1181 router table to the right wing to get a dual-purpose machine going. The full sized table and ability to use the Delta fence as a dual-purpose fence make this my best tool purchase to date.
Oh, almost forgot to answer your issues directly. There aren't really any kinks, Delta's been making this saw for decades, the only things that are really 'new' is the safety feature set (second to none I've found, although I only use the RK) and the tubular frame (subtracts weight, as stable as others AFAIK). The throat plate that ships with it is fine and WAY overstated, although it only bevels to 40 degrees on my saw (d'oh). It took me an hour to make 3 ZCI's from 5/8" MDF, although there's one tiny issue with that - even with the 10" blade all the way down, I couldn't make the initial ZCI cut so I had to use a circ saw blade (smaller kerf than the 10"). I had to hollow out the circ saw blade cut w/ my jigsaw and cut it every-so-slightly fat, so my ZCI is really an almost-ZCI that looks kind of crappy. One day I'll redo it, but the improvement in tear out even w/ the ghetto-rigged ZCI is excellent.