Is Reverb equally safe to buy from as eBay?

I've been looking everywhere for a specific guitar for a while now, and I haven't found it anywhere in a know online store (guitar center, sweetwater, zzounds, etc). However, I did find it in facebook marketplace.

Guy who sells it looks legit. I asked for more photos and he provided them, he has a history in his marketplace profile of selling music gear with good reviews and other stuff on sale, and the profile itself looks like a personal one with old photos and other people commenting and normal real people's profile stuff so, everything looks good in that department.

The thing is, he's in Buffalo NY and Im in Chicago, so, it would be harder to proceed with the sale in marketplace if it involves shipping.

I told him I would be willing to pay an extra $100 if he were to sell it to me through eBay. He asked if I was ok to buy it through reverb instead of ebay, he mentions it's easier for him.

I've used ebay and never had a problem, but I have never used reverb.

How safe is it for the buyer in terms of, if needed, having to do a return and get a refund? Guitar looks great in the pictures and everything looks fine and I'm not really that picky, it's a used guitar I get it, but just in case it doesn't end up looking anything like in the pictures or gets damaged in the shipping, how safe would I be to claim a refund? Is the process hard?

Thanks!!