My son wanted this for his Birthday so had it since launch via gamesharing but only got around to playing it on and off the last couple of weeks.
Completed it now and very mixed opinions at various stages of the game. Some aspects are fantastic, like the story itself, atmosphere it creates etc and some of the general combat elements are great, but some are terrible and at times I was ready to jack it in because some sections were very tedious and boring. Many longwinded periods of frustrating level traversal and no action, with little idea where you're supposed to go in many cases. The map itself looks visually good but can be difficult to clearly see which routes you should take with the multiple level system, and some just being enormous. IMO they should have allowed you to place markers on the map so when playing you can have a visual idea of where you need to go rather than needing to constantly open and check the map again. You don't even have a visual guide to the main objective in normal play so I found that odd.
The issues with level traversal was compounded by always having to make you way through it all again to get back to the ship. For me the pacing of the game would've been far better if you could complete whatever main objective you're doing and then have a cutscene returning back at the ship or something because some of the return journeys were the worst to get lost. That was then compounded further on some of the more complicated planets / maps when you had to return to them for another level and repeat the pain. Some shortcuts help a bit but as mentioned the second time around it's not always clear where the shortcuts are as it just creates another route which isn't always easy to see on the map if across multiple levels. As mentioned some fast travel options between meditation points would've worked too so strange omission.
The difficulty spikes for the bosses were ridiculous as mentioned and just annoying in most cases as seemed no matter what you'd barely make a dent on them, yet drop difficulty down one level and they barely make a dent on you.... that's something that shouldn't happen.
Anyway once you gained more abilities it obviously became more enjoyable and the last 3rd of the game I thought the general gameplay was far more enjoyable and pacing better and the story really came into it's own, but it's just a shame many players I'm sure will have packed it in before then because of the frustrations earlier on. Overall I enjoyed it and glad I've played it but IMO could've been far more satisfying to play if they'd changed a few of the frustrating aspects. Also I'd rather your force meter didn't run out so quick meaning the majority of the time you can't use your main abilities until it replenishes. You're a jedi and should feel completely bad ass and relish hordes of enemies to destroy with your abilities not just your lightsabre.... Imagine the Batman Arkham games if you had most of your abilities limited in such a way. I just think they missed a trick there and it would've been far more enjoyable had the meter lasted longer each time before it needed replenishing.