So, I installed DP1 on my mid-2013 MBA 256 gb SSD, 4gb ram.. I installed it over mavericks took like 18 minutes (not bad IMO) It is running pretty smoothly. It does lag here and there.. I use google chrome as my default browser so battery life isnt an issue.. Have been reading if you use safari battery life sucks.. Also I dont use apple mail, I did try to test it out but it was a battery hog. Handoff is super buggy Screen Capture via lightning cable is buggy Phone Calls work sometimes (need ios 8) SMS from mac works.. need to sign into icloud (need ios 8) Wifi/bluetooth issues sometimes doesnt connect.. need to reboot I ran benchmark 3 results below Single-core 2179 Multi-core 4859 P.S. Dont be the idiot I am.. I installed in on my main computer. I took the risk. It isnt ready for daily use. might want to wait for beta 1 to come out. If you want to know if anything specific is working let me know..