So you want a plug in handheld?
Reviews do look really good on this one though. Read them for yourself.
Are batteries replaceable?
No. I want to pay $30 for a machine that will last two years, not $90.
Yeah, they'll get good reviews a year, 18 months out. But you don't hear what happens after 2 years.
Depends on the model. Most of them (including this one) not.