Just purchased an R 51 - I have an old HK P9S in .45 that looks so much like it I couldn't resist. Did the homework, and thought what the heck - if it turns our Gen 2 has issues, Remington will fix. Only put 14 rounds of Sig ammo through it out the back door, no problems. But it is not a fun pistol to field strip and re-assemble.
Still, time will tell. Sure looks cool though!
I too have problems with the strip down procedure of the R51. Sometimes I just want to get a
bucket of Hoppes and swish the gun around in it. That action spring is a booger bear
to manipulate. Remington had a video of a young lady racking the slide with one finger.
Either the video was a fake, or she is a weightlifter. :)