Beginner aluminum print companies

[photonewbie100]

A lot of places seem to be suggesting metal prints for a really vibrant print, does anyone have a good experience with a company that does high quality prints on metal with no defects?

 

[testbloke]

Loxley
Whitewall
Photobox
Jessops

I have ordered from all of these. In order of quality, read top to bottom (Disclaimer, I now work for Loxley so could be seen as biased).
In order of price, pretty much from bottom to top.

Loxley are dye sublimation transfer to substrate (but use 12 ink printers where most use 4, hence the reputation for vibrancy and print quality), Jessops are prints mounted to substrate, whitewall will do both.

There are many others outwith the above but I have never ordered from them.