Which Roomba model to buy?

[Twirl]

I am about to purchase a roomba (hurrah!) and I am a tad confused by all the different models. Which model do you have and would you recommend it?

I've got the 560. Think the only difference with them is the self-docking isn't it or have I got that wrong?

I was really pleased when I first had it now about 16 months later I'm slightly less enthusiastic. This is only because it's broken down four times in 12 months and had to be sent off to be repaired. Last repair was a week outside the guarantee period but they repaired it as a gesture of goodwill given the history.

Great for picking up dog hair. Far better on hard floors then on carpets unless the carpet is the very short pile sort.

Will never replace a proper vacuum cleaner as it can't get into the skirting boards, corners as well.

Will I get another one when this one finally breaks down? Mmmmm. Not sure yet.

I've got the 530 and it self-docks, I think the difference is that it can't be programmed like the 560, but that suits me fine. I knew I wouldn't wade through the instructions to set it, I just start it off myself and off it goes.
I've just finished work, childminding, and it's vacuuming the playroom while I'm mumsnetting with a cup of tea, and when I get the washing in it will be doing the kitchen.
Unfortunately I've had a few problems with it too, fixed without a quibble, but it's still annoying. Luckily I had it for a great price, so am still pleased I bought it.

Thanks for your thoughts. I am leaning towards the 530 as I don't need to program it. Anyone else any recommendations?