I bought my SP3 a few weeks after launch. I have the 128gb I5 model, and I've added a 64gb chip to get a little more space out of it. Shortly after opening my device I noticed that the screen was improperly glued/adhered to the unit at the top. I took it back the next day and the people at Best buy agreed and replaced it on the spot. I had no major issues until last month. My SP3 became extremely hot one day during normal web browsing. I utilize the mini display port and have a USB hub hooked up to replace my desktop. I still dont know what happened, but my SP3 was fried. My hub/keyboard/mouse were also fried and I had to replace everything. I took my SP3 back to best buy once again. I'm definitely glad I purchased the accidental damage warranty. They replaced it on the spot again thankfully. Now i'm trying to incorporate it into my daily life as a college student. I rarely use it without it being plugged in, but about once a week or so I let it run down to 10% battery life. Last night I fully charged my device and unplugged it in the morning. I still use a touch cover 2, as I'm unable to afford the new cover at the moment. I notice this constantly brings my SP3 in and out of sleep mode which is painfully annoying. I didnt actually use my SP3 in class until 11 a.m. It had somehow drained down to 65% battery life. I started using my device and it quickly drained to 40% after 45 minutes of use on a single webpage that I was simply reading answers off of (I was not browsing 10s or 100s of pages). (Note: I have virtually no background applications running, and maintain my on battery brightness at 40% or less) My next class was a lecture and I decided to take notes on my SP3 using the stylus. I turned my brightness down to 35% and shut off wifi. My SP3 did not even make it 30 minutes into the class period before it shut down. I want to love this device. I want it to be the great purchase I thought it would be. I even transitioned to the Lumia Icon phone because I thought it would work well with my SP3. I am unbelievably disappointed with both purchases and can't help but think how much greater I'd feel about my devices if I had just purchased a moderately priced HP laptop and an LG G2. Side note: My fan has been running louder than usual and much more often. It hasn't risen above 72 degrees in Iowa for the last few weeks so I find that odd. I also haven't been running intense applications. To be honest I haven't installed any applications to my SP3 since I had it replaced two weeks ago except chrome.