its fine with corner beads mate just go into then as opposed to up and down them. i use mine everyday and its a barton one to just keep a little peice of wet and dry in the pocket and once youve finished and before you start with it just give it a little rub down, does a lovley job the handel takes a bit of getting used to and when you get it at first dnt use it straigh away, trowel up as you would do then once the plasters hard bit of wet and dry down the side then give it a cross trowel with the plazzy to take any factory dinks and scrapes out.
if you can make a nice sleeve for it to live in othewise everytime you put it in the van itll get fcuked