Fake/plastic slate roofing tiles, tapco or envirotile or any others?

[nuzuki]

Hi guys,
Im looking to reroof a field shelter with some of these plastic fake slate tiles. I have used tapco tiles before and they were fine. Ive noticed envirotile are a little bit cheaper. Im not sure if other options are out there? I didnt want to use cement fibre tiles either.

Anyone got any advice on other options or has anyone used the envirotiles in the past?

Thanks for you advice