I'm currently using a MBP 2010 15" base model with 320GB HDD. But lately I've had some annoyances with my laptop's reliability. For background, I'm currently on Lion with the latest update, and have 8GB ram installed (DIY).
Basically, around once a month or so my laptop would slow down and it would crash and hang a lot. Then after running verify disk in disk utility from within OSX, it'll report that the disk needs to be repaired. When I try to repair the disk, it prompts me that it can't be repaired and that I have to restart and do it from rescue mode (CMD+R upon bootup). After that, all's well.
My problem is that, this occurs once a month! The last time it happened, was around a month ago, and the month after that. I think this has been happening for a year now. Last week I visited Power Mac in MOA and sought some advice from the technicians. He told me that this is definitely not normal. Most users might "need" to perform repair disk maybe once a year at most, according to him.
The frequency of this bothers me. When it occurs, my laptop just hangs when I'm in the middle of something. Sometimes I just put my laptop to sleep and it never wakes up, requiring a hard boot.
Any advice from more experienced Mac users appreciated. I still have my Apple Care protection up till 2013. But according to the service center, it'll take about a month for them to assess and "possibly" repair the unit. A month without my MBP seems quite long as I use it for work, play and everything in between.