Yeah, the GPS is nice, especially for squadmates. Once it was introduced into ME2, squadmates who should have been using shotguns but really couldn't because their AI was atrocious with them finally had something mid-range enough not to get their heads blown off in ten seconds on anything above Normal. There was much rejoicing.
I'm an AR fellow, myself. I've gotten a couple of "dumb dudebro Soldier with Assault Rifle" comments in the past, which is funny considering I haven't touched virtually any other shooters. I just like the punch and rapidity of the fire, coupled with Adrenaline Rush and formidable defenses.
My Drell Adept is rockin' that Harrier.