A commitment to a package is required, which may not be clearly stated upfront.
Cancellation fees can exceed the remaining balance of your package.
Promotional offers, like $1 for the first month, are available occasionally.
I have been using it now for 3 months and it saves me so much research. Reduces the need to call and double check every time.
How did I not know these places existed?! Atly's scoring is a lifesaver, now I can finally find THE spot without wasting time Googling my life away.