Overall, I would say that my experience playing as a woman has been quite good. Other players take my opinion into account and generally assume that I'm a competent player with a competent character. Reading other women gamers' experiences make this sound like the fluffy unicorn of player groups, because I'm also the GM's wife** and I bring baked goods most weeks. Basically, my group has been pretty awesome at accepting me as a player and being alright with the fact that Joel is the current GM.
I can't help but wish, though, that someone else would play a female character so that I wouldn't have the weight of playing the only female character in the group. It makes it a little more difficult to play an interesting character and not try to represent all women with one character. It's like how Black Widow is the only female Avenger in the first Avengers movie, and even though she is a really awesome character, she still is only one character and can't show a range of options (whereas for male characters we see Thor, Iron Man, Captain America and Hawkeye).
And there is the odd moment when someone says something and I do a double take. Or there are the occasional assumptions that all NPCs (non-player characters) are male. (Joel does a pretty good job balancing NPCs about fifty-fifty, so that helps.) For instance, at one point on our first run when we were sneaking into a warehouse, one of the players said (partly joking) that my character, Jefferson, should flirt with the guards. The player seemed to be assuming that the guards were male (not all of them were), that they were interested in flirting with a woman (unknown), and that Jefferson would be the appropriate one to flirt with them. Actually, if the player had thought about it, the opposite is true. Jefferson is not a flirty character and she has very few dice for social interactions, while other characters roll handfuls of dice for just about any social situation. Thankfully, that sort of thing seems to have died down.
I've definitely had a good experience playing RPGs so far, and I think my group is pretty great. There are just some things that I notice that are generally blind spots for the group (like assuming PCs are female).
*I have played a male character, once. It was interesting. I did feel that I got a few weird looks, but overall our group seemed fine with it.
**There was also the session where it directly involved my character, Jefferson, and involved a lot of set up beforehand. Granted, it mostly involved Jefferson getting shot at (a lot) and then we started the session by her frantically calling the others for help because she was penned in by snipers, and Joel said that he's perfectly willing to work out something similar for anyone else who wants to have their character shot at . . . but this is still the sort of thing that would not be ok in a lot of groups because my husband is the GM.