Not only I got the Realforce 10th u55g version to complete my Topre collection, but also I got my first IBM Model M keyboard.
The built quality of the Model M is superb, the stablizer wire is twice the size of MX's
The only drawback is the noise, I can't type on it too much at night.
The Realforce 55g feels great, even better than the silent version which was my favorite.
Cheers