I'm going to give a short list of products and any problems:
GBC: No problems (Pokemon Red FTW!)
GBA (SP): Several Problems. Every now and again the GB would just delete my save file (made me wary of nintendo products, as I lost several hours of hard work), also cartridges required blowing into, that said my brother's GBA (SP) and GBA were fine.
(Brother's) DS (Fat one): No problems
PSP: No problems, the battery last longer than people would have to believe
PS2: Apart from L2, R2 Buttons, and analog sticks getting stuck on 1/4 of our controllers, it's been fine. Not bad for a 7+ yo console, used with building work in the house (really dusty inside)
PS3: Recent purchase, but as of yet no problems
Windows: Too many problems too count, I will forever be wary of Microsoft products. Also XP refuses to play the Original C & C, which is annoying becuase that was a classic game.
2 Sony TVs (one must be nearly a decade old now), DVD player, 3 Sony ericsson Phones, 3 Sony cameras, one very old camcorder and Mini-Disc Player all working fine. Although the 9/10 year-old CD changer now has an infuriating clicking noise on CD playback. Also several Sony audio players also work fine, but Connect player is awful.
As you can see, Sony have yet to let our family down at any rate.