I used a bobike maxi for my son until the bike it was on got stolen along with the seat. I am pretty sure the weight limit is 35 kg and not 32. For kids this will make a few years difference! I am Dutch and bought mine in holland. They are great seats, but do remember things like the straps/foot guards etc are extra (from memory). Designed to carry a crate of beer when folded down the rumour goes!
I have seen it used for much older kids then 7, just use some common sense.
My son is now 12, 150cm and only weights about 39kg, you may got more use out of it then you think.
You can always sell it on when she is too heavy for it.
Simone