I'd avoid them on eBay, maybe everywhere.
Prices are good, Makita drill/driver kit came looking pretty much like brand new, I think the batteries were new, or at least re-cased, but the packaging was terrible, just tools thrown bare in the bottom of a box and a strip of packing paper thrown on top. Accessory hardware split out of it's bag everywhere, thankfully they were still in there, but the trigger was broken off the drill. I believe these came directly from Makita without them packaging or checking, but still, CPO is the seller and this is ultimately their liability. Initial support was responsive, about half a day, told I can ship it out or take it somewhere for repair, which would likely take weeks, or return it and repurchase it, which they said they'd help with. I needed the tools, so I opted to reorder and asked for help, didn't hear back that day and the price jumped up 17%, so I grabbed it before it went up more. I asked if they could match the original sale price, which I think is a reasonable request given that it was their negligent packaging that caused the issue, was told they can't do anything on eBay prices, so I had to eat the difference. I was then was given a laundry list of requirements to ship it back to get my refund: send a picture of the damage to get a RPO code, print out the invoice and put it in the box with the RPO code on it, write the RPO code on the box, print and attach the label (who owns a printer anymore?) And the kicker, a paragraph about how to properly package and ship the items back to avoid further damages, so I sent it back in much better packaging than it was sent. To be clear, I don't think this process is burdensome for something I damaged or wanted to return for my own reasons, I just think the whole response and process and refusal to price match the original price is bs for an item that came damaged because of their own awful packaging. I think they'd probably be better to deal with if not going through eBay, but I can only assume it's the same hassle with the awful packaging and having to reorder and do the whole return headache, but at least they might give you the sale price when you reorder.