Though Mizu Zokusei no Mahoutsukai Daiichibu has a number of issues (i.e. questionable protagonist personality, repetitious dialog style, unbelievable event progression etc.), overall I’d say it works acceptably well as a guilty pleasure overpowered protagonist series. It’s interesting the author chose to have the castaway be male, thus avoiding any awkward romance elements, and I like that they don’t apologize for delivering higher than average page counts.
Looks like I’ll be dropping Saiaku no Avalon following its second installment. The whole multiple player situation is really weird, the hybrid school/dungeon setting is bad, and the ever-fluctuating level of required secrecy is just plain annoying.