are Quad 303 amps worth buying?

I have been offered a pair of these. How do they sound and what is a reasonable price for these amps?
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I have one that I use for my LS3/5a and it is pretty nice. They are not worth much I paid about $250 for mine and that was a late model with original box and in perfect working order.
How does the 303 sound? Bob
It is more tube sounding than many more modern SS amps. So you do not get some of the crisp detail that these newer designs give you.

To me it has a nice full sound with no shrill and nice bass. I would say that it is a bit like a Dynaco ST-70 a rounded off at the extremes but a musical amp an it can take a very ugly load.