I really love Dungeon. It's not just a basic dungeon, it's a press your luck type game. The one who presses their luck the most wins.
Everyone has different tastes.
I normally respect most boardgamers except the board game snobs. Their the ones that turn up their noses at a game because "it's for kids" or "it's just too basic" or other things like that. Normally their the punk nerds in grade school that couldn't even win at Risk or other games and blamed the games rather than their inability to play diplomacy with the other kids and when they lost would flip the board over in anger. So, they put down games like Risk, monopoly (granted, this one can get long and boring for many types of gamers, especially when not using tournament rules), or even games like checkers. They blame the games rather than themselves and try to make everyone who play them sound as if they are inferior.
I have over 700 boardgames and played over 1000. I have a pretty good handle on everything from very simple to very complex. I love board games and anyone who is willing to play them no matter what type of gamer they want to play. I enjoy everything from Super Complex Wargames (Napoleon in Europe, World in Flames) to the very simple (Catan jr, Monopoly jr, etc).
Dungeon is in my top 200 games (maybe top 100 games). My favorite game is probably War of the Ring (still), though with others close in the running would be Age of Steam, Powergrid, and Runebound 2e.
But press your luck games like Dungeon are a really enjoyable type game. It's all about being lucky enough and guessing to go far enough to get more than everyone else without dying first, or being the first one to get there before others because you didn't die...etc.
If there are others who enjoyed Dungeon another one (originally put out by a competing company) is Dungeonquest. Very similar in the idea of the game, but a slightly different variation with tile laying and rock, paper, scissors in resolving tests.