Buying stuff on sale would be worth it. Like really, get your money's worth.

This is a great place if you want clothes that you're going to replace in a few months.
The quality of their clothes is seriously terrible, it's great for clothes you don't really care about. On the plus side they are also super cheap, I replace my wife beaters all the time during their $2 sales. The only item that has really lasted me are their flip flops which I also bought for $2.
Basically you're getting what you pay for. Cheap shirts means you'll get little holes in them within a few washes.
My boyfriend (despite hating the fact there is always clothes on the ground) has had more success then me. He has a few basic sweaters that have manage to hold up decently and he bought a few shorts this past summer that the fabric felt quite sturdy.
I do like their online store, they always have these ridiculous discounts (sometimes miss prices) like khaki pants for $5 or something. Also no problems returning something in store, massive plus since some places treat it like you're trying to rob them when you try and return online stuff despite what their return policy says.

I rarely go into an old navy but I do purchase clothing online - only when on sale. I do like the children's line at Old Navy but once again I will only purchase when on sale. The quality is good and I because we don't have one in the town that I live I like that not everyone will have the same clothes. I will keep buying clothes from Old Navy.

I have to agree with Mamaluv, this store falls into the MEH category. I have to say that I do find it useful for buying vacation clothes. ....tshirts, shorts, flip flops at an inexpensive price....so that if the airline loses my luggage I am not upset at parting with the contents of my bag.