What is the consensus?
Saw one today and it looks like a good idea (esp the fact that they go into a bag which you can then just bung) but are they really any better than carrying a normal potty about?
My concern is that if ds wants to go when we're in the middle of the park for example that it wouldn't be very nice to have to take a shitty potty home in a bag! But loathed to spend the money if they're a waste of time...