It all depends on your skills.
BST: KindaNewish (3/21/21), WQuarterFreddie (3/30/21), Meltdown (4/6/21), DBSTrader2 (5/5/21) AKA- unclemonkey on Blow Out
I tried it. I had a 1937 buffalo nickel PR-66 in an OGH PCGS holder. Payed a bit over greysheet, but I thought it was nice enough for an upgrade. I think it is more cost-effective and you have better chances with just cracking out a slab and sending it in. Depends on the value though.