The quality is 5 stars and this unit will not disapoint you.

But here is what might.
As you may have already read this does come with a power supply. When I baught mine i got it without it and the unit only cost me about $170. While this bundle is nice i think they are charging you almost 30 bucks for the power supply.

ALso finding out from yamaha what powersupply they recomend is like pulling teeth (by hand).

There is a locking bolt on the bottum of this to attach it securly to a stand. NONE of the stands under $100 use this bolt they just sit the keyboard on rubber stubs.

STILL I 10000% recomend this unit and all in all what it has taken me to get a power supply i think the price hike here might be worth it.

Exactly what I wanted to brush up on my piano skills. I don't use all the extras (different instrument sounds, etc.), but they seem to work fine, too.

I bought this in March for less than $140. At the time of this review (two months later), the price is approx $280. Why the increase?

If the price stays high, then consider purchasing from Best Buy (and don't forget to get an adapter).

The sound that comes from this unit is phenomenal. And the grand piano setting is really lovely; it really does sound like a grand piano - you won't be disappointed!
There is a teaching aspect to this unit that I have yet to be able to fully appreciate. Maybe I just need some easier songs? I haven't played the piano since I was a kid and I never got very far with my lessons. My skill is really at an elementary level, so I had to go out and buy a book to assist with catching me up - the learning programs on the Yamaha were too advanced for me to start with as a re-beginner.
Additionally, I purchased the stand and sustain pedal separately, and they both work perfectly with my unit. I also have yet to record or hook it up to my computer, so I can't comment on that feature yet.

I received this on Christmas as a gift from my mother-in-law. This is the first piano I've ever owned. I never took lessons and taught myself how to read sheet music. The tone is extremely nice and I love the touch response. I can play songs from "Unfaithful" by Rihanna to "Don't Stop Believin'" by Journey and it sounds like the real deal.

The only complaint is that it has a 2-track recorder. Would be nice to have an 8 or 16-track. I'd even settle for a 4-track. Also, it can only hold 5 custom made songs. I'll need to get a cable to run to my computer so I can record to that instead.

The keyboard is very enjoyable. All of the instrument voices are authentic-sounding. It was a good buy.