Does anyone have strong feelings about the overall quality of REC PureAlpha-RX vs Canadian Solar TOPHiku6 panels? I have two quotes I like, and this is one of the only hardware differences. I understand both are well regarded brands, with Canadian Solar having a really big footprint, whereas REC is not as big, but it seems like there's pretty solid consensus it makes arguably the best-performing panels overall.

I've researched the warranties offered by REC and Canadian Solar and the specs and data sheet of each module. They look pretty comparable overall.

The installer who proposed Canadian Solar said something about their warranties that doesn't sound like it exactly adds up (or, even if it does, doesn't seem that compelling):

While REC offerings are solid I would not advise them on an Enphase system based on operating voltages optimized for pairing with DC String Inverters. Due to experience over the last 25 years with competing panels we prefer to exclusively install Canadian Solar on both residential and commercial applications.

Canadian Solar is one of the longest standing manufactures with one of the strongest warranties and industry bankability. Additionally Canadian Solar also offers a manufacture backed insurance policy on every panel providing additional coverage in the event or sale or change in ownership. This is in response to major manufactures such as LG leaving the market and customers with little to no warranty recourse. While annual degradation is higher than a comparable REC panel over the initial 10 year period the Canadian Solar Panels offer a higher warranty output threshold over the panels lifetime. Canadian Solar also goes a step further offering a 30 year power output warranty in comparison to the standard 25 years on competitors.

I'm really not sure what the voltage thing means, except that the REC operates at a high-enough voltage that you'd need an Enphase IQ8X microinverter as opposed to the lower-voltage IQ8 models, which are less expensive.

As for the warranty stuff, I haven't found anything in the REC and CS documentation that suggests there's some special manufacturer-level protection by CS or that the CS panels have any output warranty advantage other than the additional 5 years (which is not nothing obviously, but the REC still seems to be the more durable panel anyway).

Any input welcome. Thanks!