I too have the 5" FDE 2.0 and really like it. Feels great in the hand, really like the appearance, soft shooting (not that any 9mm is harsh). Nice velocity bump over my Ruger SR9Cs with a 3.4" barrel.
Just under 500 rds through it, all kinds of bullet weights as well as 3 different kinds of factory +P ammo, all flawless.
Haven't gone the Apex route, S&W insists it voids the warranty. Have done some very minor polishing of the trigger bar. That and the shooting have made an improvement in the trigger. Gun is certainly a keeper. Don