Right on all accounts... I experienced all those problems with both versions of the wand and then some...I have the older mytee with the wand style handle and it gets the job done but looking to get the hybrid in green at some point.
be careful with the mytee, if you have the vac relief closed too much it will pull the spray bar into the tile and chip it... makes a horrible sound.
my other gripes with the wand style one is that your shirt gets pulled into the vac relief and soaks it, also water recovery with it being 1.5inch isnt great.
seems like its either locked down on the surface and almost impossible to move, or the vac relief is open and it doesnt recover enough water