While not the worst, we can do better
Even if the Curtains die to a Lightning Bolt or Unholy Heat (rarely with delirium on Turn 2) after blocking the Monkey, they still blocked the Monkey before trading, when the typical auto-loss pattern is having your Turn 1 creature die to removal on the spot while your opponent gets a free Treasure and card flip
No Removal Gym One of the only two Stadiums (the other being Ecogym from Neo Genesis which is better in my opinion) that can hinder Energy Removal
It's faux leather and I am also very curious how long the fold will hold out before it will wear out
If youre even considering buying at least one of these, make sure youre prepared to shell out some serious cash
This has the potential to be a double-edged sword, since it also prevents you from interacting with your opponents plans, but you can run cards like Reprieve to get around that