I've ordered from Reptilink and Cold Blooded Cafe - really liked Reptilinks packaging, both vacuum sealed and the outer insulated box. My Cold Blooded order showed up in a damp box that had more tape holding it together than it than when I wrap Christmas gifts. That being said, the feeders were still frozen and my snakes are smashing them without any issues. when I have to place the next order it'll be a toss up to who has what I need in stock but that shouldn't be for another 10-12 months anyway.
I would suggest a freezer just for your feeders so you can get a decent sized order and not have to order as often. Then you just prep a months worth of feeders in food saver bags and you're good to go when it comes to freshness and no freezer burn.
Please let us know your personal experience with your order.
Now - my buddy ordered from Rodent Pro and that was a nightmare - half mice/rats in the packaging, assorted parts, and the feeders reeked of urine - I'd never order from them.