I have written a review for Megatokyo vols. 1-4, available on The Comic Buyer's Guide website. Please remember that the CBG website uses a 4 star rating. Check it out!
Megatokyo vol. 1, vol. 2, vol. 3 and vol. 4 are all available from Right Stuf, Intl., an online retailer specializing in anime and manga.