Very much.
It would be nice to get a non-underworld companion. If it's someone from the story (Malora, wink, wink) it would be absolutely perfect.
Yes. Outfits could be a little more interesting (S2 were nice but S1 and S2 - mediocre at best, certainly not something I would buy on Cartel Market)
Yes. Especially the fact that unlike other areas of the game in 7.1 you don't push for group content and most weeks can be completed solo.
Yes, all three, including all seasonal achievements. It's fine.
Objectives either fit with what I'm doing anyway or is a welcome distraction.
Aside from wanting more diverse and personable companions and better looking cosmetics I love Seasons, I think is one of very few areas of the game that work well and probably the only area that was improved in 7.0. It doesn't need any significant changes.