Reason supports audio and I don't know what you mean by "quality sound". All DAWS sound the same and have done for years.
Reason is good for beginners too because everything is standardised and works the same, you don't need ot learn how to use lots of different plugins.
I don't use reason really but have some experience with it; and it definitely does have a different sound to most other DAWs.
As for audio, can you use it in reason? As far as i know you can't other than via the sampler.