Flexi Flat/flat Beam Wiper Blades! Any Opinions?

[BenN74]

Hi, :D

I am replacing my 53 plate Avensis D4D's Wiper Blades, I have seen on e-bay these Flexi Flat/Flat Beam Wiper Blades which profess to be far superior to standard Wiper Blades, with constant contact (over 1000 points opposed to 4-8 on standard blades) giving a much better, cleaner wipe, also due to aerodynamics these are supposedly better to use at high speeds. I was wondering if anybody has used these blades and can offer an opinion on whether they are actually better, or if anybody has any info regarding these blades which may be useful to know. Thank You.

Also, is it possible to fit a longer than 16inch blade to the rear so it wipes a bigger area, as the current blade only wipes a small portion of the rear screen!

Your opinions and guidance are appreciate fellow Avensians! :D