For what it’s worth, he’s been on my trusted US eBay seller list for a few years, though at this point I don’t recall why. I’ve never purchased from him, so have no personal experience.
In the past, I have bought some budget coins from frascatius, which were authentic and correctly described. Though I have never purchased more expensive items from him, I principally have no reason to doubt his reliability.
Frascatius has been known as a reliable seller on eBay for many years. I've only made one purchase from him - a couple of books - but would have no hesitation in buying again. ATB, Aidan.
I've bought many items from him and have had no issues. He was a recommended seller by a fellow CT member. He's a very friendly and helpful gent and is where I found out about my local ancient coin club... He's local for me.