What have you heard that is bad about them? I’m quite curious if there is some impending doom about to hit mine.
I purchased one recently and it is fantastic. Having said that, you do need to know what you need in a laptop, and if battery life is one of them, perhaps some of he i7’s would not be the laptops for you.
I got a Sony Vaio F series, which only has up to about 2 hours of battery life. It has 6Gb ram, 1Gb dedicated CUDA supporting 330m graphics, and a i7 720 quad core CPU that does between 1.6 and 2.8Ghz clock speed. Full HD Adobe Certified monitor.
The F Series also has a i5 version, but the screen resolution and ram will also be lower speced. Having said that the battery will probably last longer and the price is significantly lower.
If you want a small laptop they are probably not for you though, since they have a full sized keyboard.