I'm interested in the class because I want more Force Points to use my powers than I'm used to with my Guardian, but I still want to be a pretty good fighter. I don't like how my Consulars stink in combat (I've always leaned towards fighters in D&D).
I have very recently realized just how much I love using HK-47, and I'd like to build a character who can repair him. This obviously points me towards a Scout. I'm kinda bored with Guardians, so I thought I might go for a Sentinel. Sentinels of course have the other bonus of 2 SP/level, which means there's actually a benefit for going over an 8 INT (I do powergame, just can't help it!).

Anyway, please describe for me the strengths of the Sentinel class. I'd love to know!
