I'm seeing prices of $60 to $70 new so it sounds like not a bad deal assuming they are in great condition. We've had two and they look like they are about that size, although it's hard to tell exactly. My only concern is that the one on the right looks like the wool has been left a little long, which may be a concern for some people (just like anything soft and squishy around a new baby.)
Just be careful with the chemicals if that's important to you (I didn't open the link so I have no idea if they're the natural super expensive kind or not). For us, since we're mostly broke, we get the ikea sheepskins. The small ones are about $30, the large ones I'm not sure of. It's the wool that's most important to us. We do let them off-gas for awhile but even from the get-go I didn't notice any funky smells on ours. They just smelled like wool
Washing them... Wool is naturally antibacterial so it needs not be done often. We actually washed dd2's for the first time the other day as she wet the bed. I just rinsed it in tepid water and let it air dry, then shook it out. Wool really isn't that scary!