I've had pretty good luck with both my 622s so far, but one is def quieter than the other. they were both about the same, then all of a sudden my bedroom one would get very quiet after being off for 2 to 5 mins. avg temp on the quieter 622 is 105, and avg temp on the noisier 622 is 118...on a separate note, something i noticed is that I couldnt lock out too many channels at once. (i went through and locked out everything i have no intention of ever watching). did this so i'd have much less to wade through. only have about 125 of the 700+ visible, but had to lock em out in smaller batches. this makes those first three EPG lists more manageable for me. still wish we didnt HAVE to view those first 3, and that we could have more than 4 favorites list. another random observation: 084 (HSN) ALWAYS unlocks after the daily update on both 622s. wonder if Dish is in bed with HSN...ha!