I thought the 2,000 watt unit in tha tline was an EF-2400i, but.. I won't discount the posibilty of a 2800.
That is an excellent generator, Though I have not used one myself I have seen them and looked at them, IF I were to purchase a portable the EF-2400i (Gasoline) would be my #1 choice.
As for propane v/s Gasoline,, Propane should make it a bit less noisy (And this is a generator that is already less noisy) and easier to start since unlike gas Propane does not "Go bad"
In short, I think you have a great generator there.
NOW.. the only "Problem"
IT may suck a LOT of propane... I mean a 20 pound bottle is what 4 gallons when filled (about) to the cut off point... and that's perhaps 3.5 gallons of Gasoline equivlent. So you may need to refill the propane tank a bit more often than you are used to.
But I sure would not turn down one of those.