Having purchased an iMac in the past few months, I want to upgrade my Linksys router to an Apple 1TB Time Capsule router with backup. I've been reading the reviews on this product, and to say the least the reviews are not impressive. Most state the router craps out at about 18-months, however Apple released a new generation (Gen 4) of this product in February. Any comments good and bad on this product would be appreciated, or are there some alternatives out there as well. Thanks.