It is a pretty good deal. I wouldn't say it is high quality, because i believe you can get a much better system for the price they are asking. And usually if a company is offering a bundled pack like that it's not really to the customer's advantage because they are pretty much trying to get rid of a good bulk of the merchandise because no one else would buy it. If your going on a budget you can do better than this package, but it's not completely terrible. If you want a system that you can truly rely on I would advise you look elsewhere If I were you I would definitely do more searching and probably save some more in order to purchase a system you'll be proud of. In the long run that extra cash you spend will end up saving you money in the end instead of you going with what is cheaper and having it breakdown on you.
Anyway, Alpine is a great quality brand that is highly sought after and i promise you won't be disappointed with them. They are expensive though.
Kicker is a great brand for those on a budget.
Sub: http://www.onlinecarstereo.com/CarAudio/ProductDetail.aspx?ProductID=17397Also, try
Amp:
http://shop.ebay.com/?_from=R40&_trksid=m38&_nkw=alpine+mrp-m450&_sacat=See-All-Categories
Amp install kit:
http://cgi.ebay.com/ROCKFORD-FOSGATE-RFK4X-4-GAUGE-CAR-AMP-INSTALLATION-KIT_W0QQitemZ170280804361QQcmdZViewItemQQptZCar_Electronics_Installation?hash=item170280804361&_trksid=p3286.c0.m14&_trkparms=72%3A1234%7C66%3A2%7C65%3A12%7C39%3A1%7C240%3A1318
You can probably find deals elsewhere but please don't get the package your considering. If you don't like or want any of this stuff i suggested then you definitely should get some kind of kicker subwoofer and you could find a cheaper amp that is pretty decent as well if your on a budget.
Websites: Ebay, onlinecarstereo.com, crutchfield.com, sonic electronix.com
I hope this helps and good luck.