i have the NoMar and the Mikes Racing Products stand. I mostly use the MRP stand for dirt bike tires (he actually has my photo on his website), but have done a few street/road race tires on it as well. pretty easy to use if you have good technique, and it's great to keep the wheels off the ground.
the nomar is easy to change any street tires and it's very simple once you learn how it works. I've got the 2" receiver hitch mount and it's great but I"m about to sell my jeep w/ the receiver so I'll have to get one of their floor mounts. For storage now I just slide it under the bikes when they are parked. pretty easy to move around but it's heavy picking it up to put in the receiver.