20Gal Boiler Maker

Well I have decided that once I get back from this next deployment (going to be leaving in a couple of months), I want to get a 20gal Boiler Maker. I am just wondering, is it to big for 5gal batches? I plan on both 5 and 10 gal batches. What are the major cons of the Blichmann kettles? Trying to get some info from people already using these kettles as well. Oh, by the way, I'm going to use it as a boil kettle and I brew AG.

Thanks

Here is a review thread for that product.

My personal opinion. Overpriced when a keggle will do the same thing, but if you can afford the pretty bling, you might as well buy it.