I have to agree with midnightprowler -
The Metalizer range of paints are extremely easy to use, very effective, and have a great range of colors.
They are not for areas where you would expect handling - they tend to be delicate and damaged easy - if you use the sealer, even post-it-notes can pull the sealer off the Metalizer - not good for masking OD anti glare panels on natural metal aircraft.
Having said that, if you put the paunt in a "no traffic area" such as an engine bay, the odd panel here or there on a natural metal a/c, exhausts, and the like, you'll find they give excellent results, some can be polished, and can add great realism by using various shades to highlight details.
I've used them for years, and the only reason (it seems) I'm not telling you that Alclad is a better product, is that I've not yet bought any to use.
You pays yer money and takes yer chance -
Give some a try - just don't put it where you're likely to need to handle the model.
Cheers
LeeTree