Blockchain.info wallet implemented "priority" and "regular" fee. Last night I sent $200 worth with $8 fee and it got confirmed in 1.5 hrs.
Do you think it's fair with the transaction you did with them? $8 fee is a very big amount and 1.5 hours isn't that fast with that fee.
I will guess that it is a priority fee, I've been using blockchain.info with their regular and recommended fee.
I haven't tried to adjust the fees and there's no problem to me, it's not even getting delayed for so many hours just like others are complaining.
I am pretty sure that it depends on how fast the person needs the money by because spending a more than a couple of dollars just so another person can get the money is not really a smart thing to do if the person can wait for it. I would spend less than a dollar for the transaction and the transaction would get confirmed within twenty four hours and I dont have to worry on someone not receiving the money in time.