I've seen a few installs of their radio's but have never personally heard them in action so I can't say they're great nor can I say they are crap.
If your wanting to keep that classic look on your dash then by all means go with them for their -radio only-. As much as I don't want to bash a company it is a very reasonable asusmption to believe they are decades behind in speaker design. Companies such as Kicker, MTX, Hifonics, Polk, Audiobauhn, Eclipse, and many others have decades in the loudspeaker business and are huge companies with millions to throw around for R&D, meaning a better speaker for much less.
As far as speakers go I'd wholly recommend if you can to spend the extra bones for Component speakers if your car supports multiple mounting locations. (Such as having two front speaker mounts.) Or if you willing to have someone make you car look not stock on the inside, place some kick panels. Being able to have two speakers clear across the car from each other makes a HUGE difference in the way a car's audio system sounds. The component systems are two seperate speakers in and of themselves, a large speaker (Between 5 1/4" to 7" or even 4x10 - 6x9 if you get lucky) and a small tweeter between a half and whole inch. The small speaker will handle all the highest frequencies since it is small and can resonate quickly very easy providing accurate vocals and cymbal crashes and other high frequency sound. Mean while the larger speakers will handle riffs from a gituar, the deep vocals of a tenor, and snare licks. They "can" also handle the really deep frequencies, but if you ask me frequencies below 125Hz are best handled by subwoofers.
Yes subwoofers. Don't get all "I dont' listen to that get dang hiphop" on me. A subwoofer (or two) is a great addition to complete the package. For you application I'd suggest a stout 8" or 10" woofer, maybe two. A 8" you can hide easily in a stealth enclosure and will not shake your insides when you wanna turn up the volume, but you wont' have any of your speakers distorting because your giving each of them a specific job to work the frequencies they can easily handle.
Finally, probably the most expensive single part you will buy. Is a external amplifier. You'll buy this and match your speakers RMS to the amplifiers RMS not peak RMS (Root Mean Square) is the peak continuous power that the amp can provide, usually about half of its' total peak with maximum distortion. It's ok to buy an amp too big for the speakers. Because that'll just mean they're getting clean power beyond what they can handle constantly, but buying to small an amp will cause clipping, and that is actually what destroys 75% of the speakers in cars today.
Anyway I'm sure this is a lot to take in. So here's come cliffs.
Buy the deck, buy nice speakers from a reputable company that's been in the biz for a few years, get components if you want maximum sound quality (not loudness) mount them in the four corners of your car if you can, buy an amp to power the speakers. And maybe, get a small subwoofer.
Thats' my car, I have a serious sound system in it, I don't really need the subs but its' nice to get those damn ricers to turn down that bull**** they call music. By making their knock sensor stall their little econobox form the bass hits of iron man.