1. The supplied fan mounting clips/brackets are 'non standard/universal', meaning you cannot (without modification) use the clips to mount other 120mm fan. (But I suppose one can improvise with zip ties?). 2. looks like heatpipes are not soldered onto the fins. (this might be a cut-cost decision). However, both 1 and 2 are going to be adjusted in a future version. I have no actual experience but just scan through posts in Chiphell to gather the above info.