I personally have owned three "other" Android tablets this past year. All were cheap ($110 to $250). All were buggy. All really didn't compare to an iPad (the standard) or other good tablet.
My verdict is if you really have very basic needs, such as e-book reading, then go with almost any of the cheap tablets. But if you want a device that has a good responsive screen, plays media well, has a good battery, and is built to withstand drops and falls, then invest more (perhaps double) and go with the tablets that are known for these qualities.