I had a fantastic Corsair H80, never missed a beat. Ran flawlessly at low temps. Unfortunately it gave out, the pump failed and my system was overheating. I moved quickly back to stock Intel which runs my CPU around 60 under load. Not great, not awful. I decided I wanted to move to watercooling (kit) again. I went into DComp because I have no patience when it comes to new purchases and didn't want to wait 3 days for my distributor. I ended up leaving with the Antec Kuhler H20 650v2 which looked similar to my H80 but lets me know via a light how hot things are getting, sounds great. I take out my Intel cooler, clean off all the thermal paste (on CPU and both coolers) and re-apply some MX-5. I start mounting the backplate and encounter my first issue, it easily falls out if you don't have your hand on it. After nearly 2 hours of struggling and getting a second hand from the missus I've got the cooler on, oddly though the backplate sits on an angle with all 115x pins set. Either way, its on. The downside is the backplate is too wide on the bottom right for the CPU cutout on my Node 804. Odd, I think. Oh well, I'll see how temps hold up, should be enough tension. Temps were OK, maybe 3 degrees lower than stock Intel. Fan was loud as all hell and huge (good luck finding room in a MATX case). I plan that on my day off (today) I'd use the spare backplate given with the cooler to cut with my dremel to fit. So I do all my cuts, looks great now. I go to remove first backplate and one of the pins has pulled the metal thread through the backplate without any excessive force. Oh well, easy enough. I'll change that. So I proceed with swapping backplates. The modified one fits like a dream and mounts easily enough. I test my system and under 50% load it's hitting 70+ degrees. That's absurd so I decided to check my paste, mounts and fan connections. As I start undoing the mount screws I notice one is spinning freely. I'll come back to that. So I go around removing the other screws and only 2 come out. Odd, I check the mounting plate at the back and the metal thread in the plastic backplate is free spinning. Fan-freaking-tastic. After about 40 minutes of delicate work I managed to free the screws, which required more force than I'd ever want to exert on a motherboard. I proceeded to throw the Kuhler in the bin. Hands down the worst cooler I have EVER owned. TL;DR Antec Kuhler is loud, awkwardly large for a 120mm cooler, poorly made and a horrible performer. Would rather a stock cooler and a swift kick in the crotch then to ever touch one of those horrid things. Before anyone asks: I never used excessive force when screwing in the mounts, the cuts I made had no effect on the backplate's integrity and I followed the instructions to the letter both times. Plastic backplates with metal thread are a horrible idea.