@arkandel If you like fun and goofy, I'd say yes -- thinking of it as a comedy first helps. The husband watched a few episodes of season 1 and went, 'screw this!'. It just took one episode of 3 and he watched the rest of it happily and is super excited for and thus far enjoying 4. (They inherit Constantine for a few episodes of 3 and apparently all of 4, which is also a plus for us, at least.)
There's really not much to know that doesn't get explained fairly well in the intro sequence, to be honest; scanning through the wiki page for the episode synopses for s1-2 would more than cover it and take maybe five minutes tops.
The cast really seems to have gotten into it by 3. We've seen the classic 'team that works together really well though sometimes somebody screws up in some well-meaning way' in a lot of the other supers series, but not much of the 'dysfunctional band of screwups that still has to pull a win out of their asses'. I think of it somewhat in terms of gaming dynamics? We see a lot of the former: the 'team that is a well-oiled machine most of the time tackling challenges' -- which is... fine, but not always much fun, is more predictable, and is kinda 'classic tabletop fun'. More fun to me is the team of misfits, which is somehow more like a lot of MUing -- the misfits are fun and interesting in their downtime with more conflicts and confusion and humor and challenges in some ways that the well-oiled machine that only sometimes breaks down tends to be. It's the same sort of charm that things like 'The A Team' had, in a way.
ETA: I can't say I care what happens on Arrow. It's just... on. And there. It's background noise that isn't streaming TV news.