From what i can gather, Aldi have a pretty good, no quibbles 12 month return policy anyway, so if he isn't happy with it, there should be no problems returning it
Whilst it may not be all singing, all dancing like some of the other brands, for the price i've found mine well worth it. This one looks slightly different to mine, but in essence, i would imagine it runs the same
Be warned though, if it's anything like the last batch, most stores only got about 10, and they had more than that in people queueing up outside before opening. You need to be an early bird to catch this worm