It's really refreshing to come to the end of this review and be able to say that I would buy this computer for personal use. Well, if it wasn't so expensive, I would. The price is just a bit hard to swallow. Acer has the machine available for $1649.99 at the time of writing.
This Ultrabook is definitely one of the best I've used, though the keyboard still leaves some to be desired. It's got the best screen I've seen an Ultrabook equipped with, a 1080p IPS screen. It's a gorgeous screen to look at and should be capable of doing color-sensitive work such as photo editing.
Better yet, the rest of the system supports the screen. The dual-core processor Acer has equipped the S7-391 with is plenty capable of doing light-to-moderate photo editing. 4GB of RAM should also be plenty of memory for photo editing.
Battery life is one place where I do have a few qualms. It's not the worst battery life that I've experienced, but it certainly isn't the best. The whole idea of an Ultrabook is to be light and portable so that you can take it on the road for long periods of time. Unfortunately for the S7-391, this means you'll likely need to track down AC outlets throughout the course of your day. At least the AC adapter isn't the largest known to man. In fact, it's pretty compact and lightweight.
Overall, the Acer Aspire S7-391 seems to be of high build quality. It's extremely solid, considering the thinness of the chassis. It's built from high-quality materials and definitely looks the part of a premium machine.
The performance is also in line with a premium Ultrabook. But, is it worth the rather large price tag? I'm not sure it is. I think most would be happier going with a MacBook Air, though you do lose the 1080p IPS display and touch capabilities.
If you do need a capable yet portable machine that has an IPS screen, then I think you may have found your match. I would still advise you to find one in a store where you could test out the keyboard for yourself. I can recommend this machine, unlike its smaller brother. It really is a premium machine.