"The Boston Globe" described playtesting as "what everyone says is the least favorite part of the game-building operation". Steve Meretzky of Infocom said that "the first part of debugging is exciting; it's the first feedback. Somebody is actually playing your game. But by the end, you get sick of the little problems. You have spent three months inventing the game, and now you have to spend just as much time cleaning it up". The requirements for a person to be considered for participation in a playtest vary. Some playtests are open to anyone willing to volunteer, while others specifically target professional gamers and journalists. Some playtests also try to evaluate the game's appeal to players with different levels of experience by selecting players with varying exposure to the game's genre.