I've been working with Computer Nirvana and Mark Litin for over 5 years. Our household has 4 computers and there's often a need for service or upgrade. Mark has done a great job for me every time. He listens, suggests options, responds to questions, and best of all he does quick, efficient work. He has speeded up our computers to better than new. He's honest, not expensive, and best of all he is a gentleman. My highest recommendation. read more