The size and weight of the keyboard just like the real piano, I like it. If you are computer wiz, know how to configure audio file and look for better price on full size keyboard, then this is the one for you, otherwise, do not buy it, because the keyboard doesn't play sound, you must use your computer to output each key's sound, and there are no any detailed instructions in the start menu how to configure the audio sound and export sound files, and online technical support also lack of step by step instructions, to reach a live customer support is impossible. I finally got an email back after more than a month, but it didn't tell me any instruction, just told me log on their website check out frequent questions/answers. I ended up returned the product.