Something no one is talking bout is can you use teh computer adn can you read it. Yes dize adn display will fix that. I have had several comuters in my time and they all have the same flaw. The menu system and button usage are too complex. ONce i got the shearwater those concerns were gone. It is the most intuitive computer i have used. You shold not have to have a book to read button one hold for 5 seconds button 2 for 2 seconds each to advance to nest menu line and button 3 to make a selection and BTW you may time out if you dpause too long or do it fast enough. shearwaters are blu tooth linked to the desktop also.