My only reservation would be the materials used. If a cheap plastic is used it could easily melt with the temperatures of the engine considering its placement. I currently use a Hondata gasket and will be replacing it fairly soon with another Hondata gasket.

Consider tires in the same respect. You can buy a brand name for $XX.XX/ea or some cheap-o version for $50/ea less. It's all rubber, right? Just a different perspective on a similar set of parameters.