I have had mine for 2 1/2 years (I got it a month after Heather got her V7), bought just after they became available & love it to bits. I swapped a Honda NC750S DCT for it after 3 1/2 years ownership & know what you mean about the "can't put my finger on it" bit - very competent, but somehow lacking ? The RE ticks pretty well all my personal boxes WRT to performance, handling, economy etc. for where I am am now. That I think it looks great as well is a bonus - makes me smile every time I see it for some reason.
There have been a few warranty replacements - mostly minor finish related things (seat stiching started coming adrift, both mirrors silvering flaking near the edge) one a bit bigger (rear shocks lost damping) and one currently ongoing and looks like it won't be resolved (front disc warped - "we don't cover brakes under warranaty" according to MotoGB.). A 3 year unlimited mileage warranty is only valuable if justifiable claims are honoured !
Paint & chrome quality is not far below the Guzzi (what a turnaround for MG - used as a standard for finish !) & it has anodised alloy rims that don't require polishing. Servicing has been cheap at £180 for each of the annual services it has had so far, which includes valve clearance setting (a lot cheaper than the Guzzi).
I didn't have any issues with the OE Pirelli Phantoms Sportscomps other than they were a bit soft - 4K each for 2 off rears & 8K for the front. I replaced them with Continental ContiGo! and, if anything, they have sharpended up and lightened the handling compared to the OE.
It seems to be getting more economical with increasing mileage, averaging high-70s / low-to-mid-80s mpg, typically getting 160 miles before the low fuel light comes on - filling shortly afterwards always takes 9.5 litres, so around 4 litres left at that point. Seat I find good for 3-4 hours at a time. A pair of Motone Customs bar risers made the ridng position more comfortable for me (around an inch rise and an inch pull back). Farkles added include a cheap analogue handlebar mounted clock (suprising omission from the dash IMO), Nemo 2 chain oiler, Givi 140A screen with bike specific brackets, Givi pannier frames (with E22 panniers) & Givi carrier. I had a Hitchcocks carrier initially, as that was all that was available early on, but the Givi is more usaeable.
WRT the Guzzi not having had any issues - I was wrong, there is one ! The filler cap can be almost impossible to remove on occasions & leaks fuel through the key hole if filled to the factory "stop" line when it is hot weather. It seems to pull a vacuum in the tank & the low profile screw-in filler cap is very difficult to grip. A couple of times now we have both struggled for 10 minutes or more to shift the damn thing - it has a ratchet mechanism to supposedly prevent overtightening, but it has stuck even when only given a light nip onto the seal & not getting to the point that the ratchet slips. Dealer claimed there was nothing amiss when it was reported at the last service (just before the 2 year warranty expired) - it stuck again the next time it was refuelled.