Don't hear too many success stories about disposer repair. Pretty much a "disposerable" item. Spoon could have bent something causing the unit to seize.
For a replacement, I like the insinkerator compact pro from a plumbing supply house (now the pro 750) . Lowes & HD carry them now, but I hear rumors that the supply house units are better.
Better warranty from the supply house units anyway. YMMV