I would be wary of Pack and Ship places, unless you can actually WATCH them pack your stuff. I got a quilt once that was not even in a box, just two pieces of cardboard folded around it and taped. Found out it was the work of a P&S place, who had told the sender, "Oh we have just the box for that".
Anything worth more than $50 or so, I use UPS. Also, anything over 3 pounds is usually cheaper UPS unless you can fit it in a FR box. UPS gives you the first $100 of insurance for free, and up to $300 is the next tier. And very easy to collect if you have a claim, not like the PO.
Plus UPS gives you tracking EVERY step of the way , every time it arrives or leaves a way station. Good for peace of mind.