Hi
I hope no-one minds me posting this (because I work for Greenhouse Sensation

) but Gradeners' World did say that the Vitopod was the best buy. It has also just received a great review in a gardening magazine.
It is large, van be made taller with height extensions and can be controlled to 1C. You can read the reviews on our website.
I'm actually raising chillies in my Vitopod at the moment because I've entered the chilli growing competition in the chilliman.org website (that's a whole other story though).
Thanks
Emma