While Samsung's electronics are very good (I have their Refrigerators, TVs, and more) and their TOP TIER phones are very very good, their value phones are complete trash:
Their feature phones, like the Samsung Restore, have very buggy software and firmware (such as spontaneously rebooting, erasing text messages while in the middle of writing them, and more), and their low end android phones, like the Samsung Intercept, are just as buggy or worse (ringtone continuing after the caller has hung up, constant freezing, glitches with the slide-out keyboard, general sluggishness).
Very very disappointed.
My non-flagship phone brand of choice is LG: Their feature phones (like the LG Remarq) are very durable, robust, and the software is well laid out... Their low end android phones are quite functional, and are rock solid, in hardware and software (like the LG Optimus V). Their mid-tier phones (like the LG Esteem) have proven to be beautiful and speedy. LG phones are not without their faults: The feature phones don't store many text messages, the built in cameras are marginal at best, but I'll take stability and durability over top tier secondary features, particularly in the value-to-midrange tier.