Invisiframe stuff is great. I’ll be putting it on all my frame from now on. Yes it’s expensive, but it’s cut perfectly to match your frame, and will save you hours trying to cut helitape yourself trying to get the same result.
I also think the stuff they use is much tougher than helitape. My frame is now almost 3 years old and still looks almost new!
Fitting it is relatively easy as long as your patient. Unlike the official instructions I used soapy water to position the tape. It’s not quite as grabby that way allowing you to reposition it until you get it where you want.
EDIT: If you ask them nicely they’ll also happily send you replacement bits of the kit if you really cock it up.