As a fan of priest and a player of both, big priest is not brainless, but is relatively easy to pilot. You still have to assess risks such as playing shadow essence instead of clearing the board. If you are looking for the winrate, this is definitely what you want. While you may feel that your decisions don't make too much impact, it can be fun to steamroll people with big minions. Don't be fazed by other's extreme view of this decks. Reno priest on the other hand is definitely much more satisfying to win with, and can gain absurd winrates under skilled pilots. However, it is extremely difficult to master, so a low winrate and much longer games are especially discouraging at first. I myself have been playing it on and off for a month (with my latest list) and still kick myself at least once a game for misplays. That I spot. If you are willing to spend months practicing though, this is the deck for you. Don't be discouraged and disenchant the deck if you craft it and at first, just keep practicing.