Most of these games below absolutely nail a handful of elements well enough to make them worth playing despite the flaws:
Fallout 3 - Absolutely THRIVED on it first time through. My first Fallout game and the atmosphere sucked me in big time. More-so, the exploration element felt very natural, and whereas most OW games of that era would see you explore & end up exactly where you knew you was going to, FO3 evolved really well and I found myself being drawn on an adventuring path rather than doing things by the numbers. Second & subsequent playthroughs were shite & shallow, but as a once off it was a good 8/10 experience.
Fable 2 - Yeah a bit shit, boring as fuck combat, but it had enough charm to keep me playing & still enjoyed it enough to finish it. 6/10
KOA:R - SO much potential, loads of fun to be had, just absolutely LOADS of BS busywork to do at the same time. I'm now on my 3rd attempt to finish it &, through skipping loads of content (done the main quest, the main houses & the guilds) I'm around 2/3rds of the way there. It's really just 1/3rd a good game trapped beneath 2/3rd of filler dross. But what it does right it nails brilliantly. 6/10
Mass Effect 2 - Very "meh" all round, I still enjoyed it immensely on my 2nd playthrough simply because some of the characters & whole "form a gang" vibe is so strong. I found most of the cast interesting, and thought the renegade arc was great fun. Still deserves the panning it gets, but would still recomend folk play it 7/10
Pillars of Eternity - Good game let down by bugs & sloppy design choices. Another game where combat is fairly shit, yet you seem to spend far too long in combat. 6/10
Phantasy Star 3 - An absolute arduous slogfest, but one which had such an original & intruiging storyline + C&C setup that I played it through several times. I just really wanted to find out what happened with each gen, and felt really connected to the family lines. 5/10
Risen 2 - Flat out fucking brilliant RPG, with tons of mint elements which far outweigh the flaws. Yes it's buggy, yes sword combat & voodoo are pants, yes it's rough as fuck around the edges, but fuck me the plus points are massive. Awesomely atmospheric with some great music, simply some of THE best & most funniest dialogue in any RPG I've ever played, nice interesting islands to explore, a ton of interesting characters, significant C&C, hell even the run & gun gameplay is fun-ish. Has an absolute blast with this one. 9/10
Witcher 2 - My personal fave game ever. Pisses all over TW3 IMO. Dark mode has one of THE best balances between action & RPG elements I've known in a game. The C&C is nothing short of stunning (the second chapter perticularly), and the replayability of the game to see the story from all angles with all choices is supreme. Once the first chapter gets going the pacing is absolutely bang on, and the vibe of the game is a far better gritty-fantasy mix than TW3's bland affair. In TW2 I actually felt like a witcher having to do tasks such as slay the Kayran & form a potion beforehand etc. 10/10