The product is great. It may take many hours of charging the first few times to get the full capacity of the battery (which it says in the mini-manual of the Play & Charge Kit). But the battery life is great.
You can also use a USB port from a PC which will then install the drivers (TO WINDOWS) and allow you to charge it. This helps part you from the wires.
The length is helpful for those playing far from their TV's or using larger TV sets. But there is a risk that if someone hits that wire your Xbox is going to get pulled of knocked over - with a disc running it will most likely be fatal.
There are as I've seen no Quick Charge Kit Docks in Black but only the black rechargeable battery packs so the problem here is matching colours. If you want it all in black get a Play and Charge, if you have all white hardware and prefer the convenience of staying completely wireless 100% of the time get the quick charge kit. The battery times are similar. The actual battery life from full charge from this product is 25 hours. (See Manual)
The snug fit is a little too snug and requires a flat-head screw driver to get the play and charge kit off the top of the controller, but eventually it will loosing up. Those who are lucky may not have any problems with it fitting too tightly.
Overall, the product is good. If you prefer to stay wireless completely then go play and charge kit, but if your doing clan games and you run low then play & charge is very handy. Again it is down to preference and colour matching.