We have just bought this car seat after much deliberation. Spent a good couple of hours with the chap at Groovystyle who went through the options of forward and rear facing and the advantages of RF. We thought rear facing was much more expensive and wasn't sure but they had the Besafe X2 beltfix on offer at £169.99 which was a little more than the Maxi Cosi Tobi we were going to go for.
www.groovystyle.co.uk/productpages-new/besafe/izi-combi-x2.php
I said we would post this up as there were so good in store.