Inspite of its browsing speed and reliability, its almost unusable in mid-end PCs.It needs high performance processors and rams to work smoothly., the earlier versions like in 2011’s used to be good but the later versions r getting worse everyday on performance., it keeps on freezing and crashing especially on youtube, freezes again on reload, facebook takes longer to load., you need to perform cleanup of junk files everyday to get it working, I’ve now switched to other browser.