Well...make sure you thoroughly research any company like that, getting tons of opinions from all over. And especially from the exact one you'll be using (if there is more than one site to the company).
We had a ton of comic books that DH was finally ready to sell. We *thought* we were doing ourselves a favor by using isolditonebay. Oh we could not have been more wrong. They told us to take them to a certain storefront of theirs, because that's where the comic "expert" worked. That dude would bundle them to maximize the selling point, it would be great.
The first problem was that all of a sudden, that storefront moved, and they packed up all our comics and they basically disappeared for about 2 months. Then it took about a month to get them bundled and priced. And then...it was either a rotten time to sell them, or they did the bundling very poorly, because each set sold for so very very little.
I had balked at being the ebay person b/c I was afraid of doing something wrong. We had priced them online and with the current comic pricing book. We knew what they should have gone for. Also, the store didn't put a reserve price.
Then they took their base fee AND their percentage.
We got almost nothing for hundreds of comic books, and of course by the time the checks came, the comics were LONG gone.
Then adding insult to injury, their last check sent to us bounced. They apologized, added our bank's fee for having a check bounce in your account, sent another check. Which bounced. I had a HARD time getting in touch with them this time, but finally got them to add the original amount, then they "found" an amount they had forgotten to pay us, plus the first and second fees we had for having the checks bounce from our account...and when we finally got that check, we tracked down their "home" bank (thankfully it was a local franchise!), got the manager, had the manager check their account, and had the check cashed right there after he found they had sufficient funds (and he didn't charge us their normal fee for non-customers).
So if that place still exists, I cannot recommend you even think of using them.
And heck, we had a problem with a local antiques auction house! We had an old desk that I could not have in the house, because MIL had destroyed it by storing mothballs in it. My hubby was very very sad, because he had always wanted that desk, but it was making me sick, and nothing could get the smell out. We told a local (walking distance) antiques place about it, they inspected it, took it. Unfortunately, they refused to set a reserve price. And unfortunately we were not in town for the actual auction date.
It sold for $10. Their fee was $10. They felt so bad that they waived the fee. So this antique, gorgeous desk went for $10. I think if we'd been able to really *find* a buyer, we could have found someone who wouldn't be bothered by the smell. A fellow mothball user, a heavy smoker, someone who had lost their sense of smell for whatever reason...who knows.
But with ebay and in person auctions, it's all up to the people out there looking for things at the time your auction is happening...can't guarantee that the right people will be "out there" at the time you're selling, so a reserve is a very good idea.
I wish you luck, better luck than we have had!