Does anyone have recommendations for a potty trainer? I saw these at Mothercare - anyone tried them and have a view?

I have exactly the same thing! :-) But with this one, you'd have to put a plastic bag on it each time your lo makes a pee or poo or you'd have to set it up in the adult's toilet and carry your lo there each time he/she needs to go. So if you are only starting to potty train, I'd suggest the kid's potty (as shown but varies and you can get them cheap from ikea). So if your lo needs to go, he/she just rushes there, pulls his/ her own pants down, and sit. Easy for both of you. As for that one you showed, it's perfect for travelling or when you're out and your lo needs to use the public toilet. You can also use that one in your own toilet when your lo is more ready to use the adult's toilet. You can put a step in front of the toilet so he/she can easily reach it.