Yup, I haven't heard anything bad about them. They really aren't that expensive either and make the world of difference. I have the Italian model but if for some reason I would ever have to get another, I would get the Portuguese version.
It is the Portuguese corker you have. I have done over a 1000 bottles and no problems. I also do synthetic corks without any issues. Some people have reported issues with synthetic corks. The way it was explained to me was the newer corkers do not have the issues. The way you can tell if you have a newer one is by the number of stainless screws on the top of it. The old ones have three screws and the new corkers only have two.