I bought 2 guitars off ebay in the last 6 months. A Gibson LG0 and a G series Takamine. The Gibson was exactly as described, it had a plastic bridge which has now been replaced with a rosewood one. It had been refinished at one time and the tuning machines are not original but I knew all this before bidding. The Takamine had an appallingly high action and, as it turned out, an over tightened truss rod. (luckily it was not stripped.) After some internet research and an attempt to replace the saddle I found out that this model has shims under the pickup. After removing the thickest two shims the action was OK. Taking tension off the truss rod put a bit of relief back into the fretboard. Ive now got two good buys from ebay. Maybe I'm lucky.