Portable tire changer = anybody use one?

[RiceEata]

Do these work?
http://search.ebay.com/portable-tire-changer_W0QQsokeywordredirectZ1QQfromZR8
I wanna get one to change my stock tires.

[Dousan_PG]

great if you like thrashing your rims
and some cant do certain sizes and all that.

its only like 5 bucks at a mexicali tire shop

[tryiian]

im interested in a solution myself, though certainly not at 20 for th unit and 30 for shippin... this mexi tire store on th other hand... do they have a branch in th 205 area? (bham, al)

iDon think iMade a klear point though, that iAm interested in th tire-changin on th fly idea, but not serious abou th ghetto el tire shop.