My husband and I have been PP players for 4 years and recently subscribed to play the full game, so it was a first time play through on the Eternal Empire chapters. We enjoy the story progression. Of course, it's always a tad confusing on the first play through, like running through a maze. We thought the Gemini Captain fight in Chapter 15 was the toughest and the least supported with helpful aides, like extra tools or skills of all the chapters. That fight pretty much boils down to having Senya at level 20 or better, a stim or two plus sheer skills and grit. I read others say in the SWTOR Community that the reprogrammable droid was meant to accompany the player into that fight with the Gemini Capt. Apparently, that used to work out.
So, on a first run through in this game, it wasn't clear what role the droids played or how exactly they were acquired. That's part of the learning curve. I failed to figure it out the first time. My husband did get a reprogrammed droid and it was with him in the corridor in front of the Gemini Capt chamber, but we needed to log-out before completing the fight. When we logged back in, however, he no longer had a droid and there was no recall button to bring it back. Also the grenade goes away if you log out as well. So, depending on whether that droid is actually meant to be a fight aide, it would be helpful to have a way to reacquire it on logging back in, if the player had picked up the droid previously. (Grenade, too)
So playing Chapter 15 a second time (different character), I was very careful to acquire those reprogrammable droids, But they proved less useful then I expected. All of them blew up. So, I arrived to face that Gemini Capt and I had my reprogrammed droid with me, but in the first fight with the Star Trooper mob, it promptly exploded. No more droid. I don't know if it's supposed to be that fragile or whether's it's bugged or what.
If the droid is actually meant to be a help in the fight with the Gemini Capt, it would be nice if that worked reliably.