It just occurred to me that we've never actually seen Barry's apartment, at least not that I recall. That's weird, to go through more than half a season without ever showing the main character at home.
I realized that when he was moving in with Joe at the end of the episode. You're right, it does seem a little weird. I guess it's not hard to see Barry devoting all of his non-police time to increasing his speed, as he really didn't seem to have much of a life, anyway (except for interacting with the S.T.A.R. labs crew, Iris, and Joe).
^Indeed. Lisa Snart, Leonard's younger sister. She's also a long time Rogue. She's probably even crazier than him.
Going only by the show's version, Leonard doesn't seem to be the crazy one at all. He seems to be the rational, calculating one, with Rory as the psychopathic hothead (playing into the cool/hot stereotypes).
These are all the Geoff Johns touches to the Rogues. His Leonard Snart was, if you'll excuse the pun, as cool as a cucumber, rarely giving in to strong emotions (the death of his sister being one of them, though she died in the comics in the mid-90's, and it was Johns' spotlight issue of Captain Cold in the early 00's where he sought vengeance for that). Being the leader of the Rogues, it was always Snart's way, and his way including some pretty good lines of thought, such as, "don't kill a 'cape' since it brings too much attention to them).
Johns wrote Mick Rory as a pyromaniac, who was responsible for the death of his family, as a kid, when he locked them in their house late one night, set the house on fire, and just stared at the flames. He'd had varying degrees (again, sorry for the pun) of control over this, but in later issues gave in to the lure of the flame.
Incidentally, both Snart and Rory created their weapons in the comics. Snart figured the emissions from a cyclotron could slow the Flash down and built a gun based on a cyclotron. Mick designed his gun to quickly eject its ammo, and even developed a quick-draw system where it would reload upon being placed back into its holster. So, I like Snart's insistence that they know their weapons backwards and forwards, even if they didn't create them themselves.