Our first exposure to 5 Guys was during a trip to Orlando a few years back. I teeter on liking and really liking their burgers. Definitely don't love them. I HAVE to get an In-N-Out burger any time I'm in the vicinity of one whereas I'd like to stop at a 5 Guys on the way back from Seattle. Heck, there are two 5 Guys in the Vancouver lower mainland and I haven't been to either of them yet.
They're a good tasting burger but they are a bit mushed together/sloppy. We generally order the little burgers too. Find the double patties a bit too much meat. Like their fries better than I-N-O tho.