I don't know about VE RHP's, but I have 3 Pro Products panels (2 of which are about 4 years old). Pro Products are known to be both solid and reliable. Not sure what the price comparison is, however, to the VE. I have NEVER had a problem with any of the panels, and the temps have been relatively on point.
With that said, I just called Pro Products today because I need 3 new heat panels for new enclosures. Due to supply chain shortages (most likely due to COVID), they are at least 8 weeks behind on orders. And, they re currently not taking any new orders. They ask that you try them again in about 8 weeks. So... if you need something quick, Pro Products is probably not going to be for you.
Hoping to hear other responses... because I too need the heat panels, and need them soon.