They are very nice! I like the alternating year thing - the even years has the same design (until recently, at least), and the odd years have unique designs.
The special 2011 Matte Britannia is an exclusive offer of Asset Marketing Services aka (GovMint, New York Mint, First Federal Coin, Preferred Customer Club). Yes their prices can be high but their ad copy is straight forward and they have some nice exclusives that I dont mind paying for...since I collect to keep...resale not an issue. However they do have some very competitive prices with world bullion. This matte coin was either pf69 or pf70. As a rule I never pay more for a higher grade with a new coin.