I don't think any of the Mass Effects are good games in the gameplay sense. At most, I'd say they are better than the sum of their parts. It's been a loooong time since I've played them last, but I can't really remember anything all that interesting in any of them. They kinda feel exploitation-y in a way, as in exploitation films. The monogendered species comprised entirely of women, the harem-style romances, aliens who look like old Star Trek costumes, pew pew lazors, terminator robots, tentacle monsters, etc.