I think this is a great thing about DC. With the "no exchange fee" through II. I can secure a 1BR or 2BR, that will work, but upgrade in flexchange for something larger that works much better. With DC, you get both the exchange and reexchnage for no cost at the time of the exchanges.
We did this last year at Surfwatch. We exchanged in to a 2BR at Barony, the 2BR would work. With two couples and another single we opted to reexchange in to a 3BR Surfwatch during flexchange. Of course this was before we joined DC, so we paid the $109 fee each time. We did it again this year, obtaining a Ocean Pointe studio for May, then just recently we reexchanged in to a 2BR Lakeshore Reserve. We loved Lakeshore Reserve when we stayed two nights in 2010, looking forward to going back for six of our seven night reexchange. Of course even sweeter, we saved the $109 and $119 exchange fees. That just more than covered our $165 DC annual fee.