I shouldn’t be the one responding, since my role in this thread is to occasionally pop in and be all fanboy, but I’ll do it anyway.
Flaws: the big one you’ll hear is the “mile wide, inch deep” complaint. It’s a big galaxy, they’ll say, but there’s nothing to do but grind for money and ships, and it’s boring and lacks much in the way of a personality or fun. Personally, I don’t agree with this complaint, but I can see their point of view if I crane my neck and squint a bit.
To that complaint, I think Frontier has continued to enrich and deepen the gameplay. Opinions will be mixed, and there’s a fair bit of drama when a new feature pops up, but mostly I approve of what they’ve done and where things are headed. There’s a ton of stuff there, really. Some of it will be to your tastes and some not. The game will only get better over time (albeit mostly through paid expansions every year or two, along with incremental “quality of life” improvements for everyone).
The foundation is eminently solid. The flight model is fantastic. Combat is terrific and challenging. The way they’ve dealt with travel across vast distances strikes a nice balance between scale and speed. The sound design is, full stop, some of the best stuff ever in a game. The graphics are beautiful and convey the cold, bleak beauty of outer space. The ships are cool and varied and there’s a ton of stuff you can do with selecting and optimizing your build. It’s all got a very British, understated, polite vibe which I dig.
Despite all of that positivity, it’s also a game I don’t play constantly. Sometimes I’ll take a break for a few weeks. Sometimes I’ll wipe my save because I like the early-game and starter-ships experience. I haven’t engaged with perhaps 80% of the stuff that’s in there (haven’t mined a single rock, haven’t futzed about with factions or trying to grind my faction ratings, for example). It’s just, in my experience, the best game ever at representing the experience of some unimportant pilot in the cockpit of a spaceship trying to survive in the ass end of nowhere. That pushes all my buttons. For others, not so much.
There’s your wall of text. No charge.