Review (4/5): Very satisfactory shave; Not a substantial improvement over 2 blade models
This is my 2nd Norelco and I am satisfied with it. My previous Norelco was a 2 row blade system which I had bought in 2001 used for 6 years. There was nothing wrong with my old shaver, but I thought this shaver would be a substantial improvement over the 2 blade system.
The good news is that this shaver is overall better than the older 2 blade system. The most significant improvement is the battery life. This shaver uses Lithium Ion batteries which lasts me about 2 months with a single charge (my old shaver lasted about 3 weeks). When you travel, chances are you will not need the recharger.
The bad news is that the shave, which the 2 blade system did beautifully, is not substantially improved over the 2 blade system. This is not necessarily bad since the 2 blade system was a very good shaver.
If you have the older 2 blade Norelco, you may want to keep it and change the blade once every two years. If you are looking for a new electric shaver, this shaver will give you a beautiful shave in a short duration with a very long battery life.