Optimate Charger. Any good?

[fazersharp]

I use a yamaha branded but made by CTECK who also supply jag bently and the like with the same charger/ optimiser it will charge and recover an otherwise dead battery/cell on bikes or car,  the yam branded one I have is this one I think  http://www.ctekchargers.co.uk/ctek-mxs5.0.php there is a cheeper one just for bikes but I thought this would be usefull for my car too.


EDIT TO SAY
The company says that -------- restores stratified and deeply discharged batteries, unique maintenance charging,
And not as I put it

optimiser it will charge and recover an otherwise dead battery/cell on bikes or car