'Arghhh..' is getting it for her son and she works for ELC which is about as good a recommendation as you can get I think!
Did you see she advises getting 20% off rather than the free cars though? From the reviews I've read, they are rubbish and break really easily. With the £11 you'll save with the voucher, you could buy some nice Matchbox cars instead which are the same size.
Got my son a great wooden garage from Plan City for his birthday on monday.He loves it so much and has played with it constantly.It is so well made,very sturdy solid wood with 3 levels,petrol pumps and a lift.