I own a 2008 Vaio SZ series. It was my fifth and final Sony Vaio laptop. They pack an amazing amount of high-end stuff into their PC's, wrap it in a really crappy container that cuts corners in all the places where they SHOULD have invested better, and then throw so much crapware onto the computer that the first thing I had to do was wipe the hard drive and re-install the OS from scratch. Of course, then half the high-end components no longer worked properly as Sony has some of the worst driver support in the industry...even if you attempt to re-download their drivers from their website (which hardly ever get updated). Then the hardware issues kick in....flimsy hinges on the screen, too much flex in the mostly-composite bodies, cheap ventilation system, power supplies that fray off within a month. And support was absolutely abysmal. It was self-serve at best and if you tried to find a Sony authorized dealer, their repair service was basically give us your laptop for a month and we'll get you a refurb'd unit eventually.
Sony makes some killer hardware on the spec sheet at least. But in use, I generally got 1 year of daily travel value out it before needing to do so many repairs that I'd end up replacing it. I fell for the "more specs is better" story so many times, which is why I went through so many iterations of their ultraportables. But in the end, I realize that Sony=low-end consumer GRADE equipment even if they stock it with a few professional grade components.
Buy what you want, but there is little to compare Sony to Lenovo, Apple, etc when it comes to overall durability and fit/finish. This has proven by so many different websites who look at long-term reliability stats that its common knowledge. I just want to save someone else from going down the "spec sheet" shopping hell I fell for. Its a gimmick and you'll regret it a year into the life of the machine, if not sooner.