Yes, avoid it. The fresh-made omelets are OK, but everything else is soggy, gloppy, tasteless, over salted, or dried out. You definitely get what you pay for there.
Hancock's restaurant brunch at the Quincy Marriott is much better (not fantastic, mind you, just much better than Finians). The Punjab cafe on Southern Artery has a buffet lunch on Sundays (I think it begins at 11:30), which is quite good.
Also, Quincy Dynasty chinese restaurant in North Quincy has a Dim Sum brunch. It's not bad for what it is, but it doesn't compare with Chinatown's versions. However, it's certainly better than Finians.