Too bad they don't specify how powerful the burner is.
The pot is plenty big for full-volume extract brewing. It's on the verge of being too small for AG brewing, though.
As for the price.... you should be able to find turkey fryer set-ups that have a burner and 7.5 gallon Al pot for much less than $70 (I've seen them for $35 or so on sale).
I don't recall seeing many fryer pots with spigots on them, but unless you consider the sipgot (which is GREAT for transferring wort) to be worth $30, you can probably find a better deal.