For the price, this is a super product. I am a pianist and my 3 year old loves my piano, but I wanted something a little less fragile for him to cut his teeth on until he is ready for the real thing. The quality of build is very good, the sound better than expected. There are slight let downs, but these are to be considered when purchasing something at this price point and portable, as to be expected. Clearly the keys aren't slick like piano keys, as they need to be flexible rubber, so the feel isn't quite right, although they have done a good job size wise and position wise. Regarding the technical side of things, I would have preferred slightly better sampling over multiple (over 100) synthesized sounds, most of which people rarely use and actual touch sensitive keys, however, as previously stated, I think these extras would make the item more expensive. It is perfect for children to get a feel for starting music without breaking the bank and without taking up a lot of space. Chinavasion service was great (to be honest, I was surprised, as this was my first order and I was a little suspicious!) and delivery was fast.