The ASA E6B is excellent, the only fault I found was it needed a bit of wd40 and a bit of manipulation in the arm chair to make it more user friendly for one handed use. It's probably the cheapest wiz wheel you'll get over here with the exception of the ali/cardboard Jepp.
I was forced to buy a CRapP5 for my ATPLs but found it to be far less user friendly and given the choice I would have spent the money on the electronic version purely for the fact it will also do weight and balance, is a calculator and you can store info and change the parameters of your flight quickly.
The ali version is still used occasionally and fits neatly into my kneeboard, the crappy 5 has been dismantled and part of it has been used to 'shim' my bathroom sink pedestal. Nuff said!