I was looking forward to trying this, as I used to play games such as Theme Park and Theme Hospital, way back when (around 15 years ago!) and always enjoyed them. However, this game was sadly a huge let down.
Things started off okay - I entered the download code into the website, received an email with the download link, and downloaded the set up program, which took around two minutes. It then took another two minutes to install. After that, a link appeared to a fairly basic manual which explained the aims of the game and the controls. I then opened the game, and this is where things began to go wrong.
You are supposed to start with the tutorial, so I selected that. It took a long time to load, sticking at places such as "50%... loading scenery" and so on. Even once it got to 100%, it then took another couple of minutes to open. Once it had opened, I tried to start building restrooms and changing rooms as instructed. However, no matter how many times I clicked on the items, I could not select them and could not build anything. On one attempt I managed to make a small area of cobblestones on the ground, but that was it; I couldn't build on top of them. I couldn't make any progress. Even when I tried to exit the game, I had to click on the 'leave game' button around five times before it registered I wanted to leave.
This might be okay if you can get it to work, though the graphics look very basic and the concept doesn't appear to have changed or improved since the games I played 15 years ago. But seeing as I can't even build the very first item, I can't comment on further game play. For me it was just incredibly slow, unresponsive and unmanageable. My computer has more than a high enough spec to handle the game so I don't know what the problem is, but I definitely don't recommend this.