I cannot speak for the new ones, but the Hippo Hands I purchased in '08 for my 07 R1200RT were just great. Fit the bike perfectly, did not collapse against the brake and clutch levers at speeds above 80mph. I was able to use the low setting on my heated grips when air temps were in the 20s F. and be comfortable (while the rest of me was not so comfortable).
I traded the 07 for a new RT in 2012. They did not fit the new RT because of the changed position of the mirrors. I have tried them on other bikes (2011 Concours14, 2013 Ninja 650, 700CTX, CBR250a). Did not work at all. But it is such a quality product that I can't make myself throw them out!
2012 BMW R1200RT, 2013 Honda PCX150, 2014 Suzuki DL650A
Add-ons: SW Motech Center Stand, Parabellum 24" Windshield, Adventure Tech Over the Dash GPS Mount and Mirror Extenders, Blue Sea Dual USB Port, Shad 49L Topcase, Rigid Industries Dually Spot and Flood LEDs, Whelen 700 LED Brake/Tail Light, Kisan Headlight Modulator, Terry Adcox Double Bucket Custom Seat in all leather, and the following Eastern Beaver products: PC8, H4 Dual Headlight Relay, Brake/Tail/Signal Adapter, Rear Brake Light Switch Connector Relay Switching Adapter.