i would try and save up a bit of cash and go for something a bit higher end. the ds-1 isnt a bad pedal by any means, there are far worse out there, but in all reality there are better units out there. and it would be very wise to go out and try out as many as possible.
personally i have owned about five ds-1 pedals, but never stick with them for very long, i preferred the boss od-1 to the harsh sounding ds-1, i didn't much care for the ds-2 when i tried it, and if i were to reccomend any distortion pedal, i would say the dwarfcraft devices eau claire thunder is my personal fav. tho they sell for about 250.00 u.s. which is a bit out of your price range.