Which electric shaver should I go with?

[Ptanis]

Hi guys,
I have decided to try electric shaver, since I do not like to be cleanly shaved all the time, I like the three-days-beard (let's put it that way) or a few mm long.
Which electric shaver would you recommend me to buy, which would not cause any rash and would have these different levels probably (clean shave or to leave a few mm).?
Thanks.

 

[Harold falcon]