IMHO, many of the two burner propane stoves are cranked out by the same factory with minor changes in features. The Primus doesn't have the edge over any others, just the name.
Seeing that shipping is significant, a two burner from your local sporting goods store on sale will probably do the trick as well.
We got a cheapie at REI on sale for $39 and it's been through several roads trips and my kids borrowing it and it works great.
One with a piezo electric starter would be nice. Cost aside, I would get a Coleman just for parts availability down the road.