I had a cheapo BigW one, but like Bath said, it's had about 3 uses...including once with Nate (well it is pink).
Reasons being, it's too much of a pain to fill (it does have a plug hole and tubing to empty so not too bad if you are near a sink), heavy if you have to carry it to empty it. If you put it on the bench then you just about need to stand on a chair to reach properly, and if it's in the bath well you might as well just bath them in the bath.
Laundry tub or our enormous kitchen sink has always worked for us.
Nate has always loved watching his sister though so he is on a towelling sling from Infa in the big bath with her.