This is a super cool concept - a bunch of different stores and restaurants in a central area, all housed in shipping containers! There's a treehouse in the middle of the "park" and lots of fun bars with patio seating etc. However, when my friends and I went (at 10 pm on a Sunday), it was almost completely deserted and most of the vendors were closed. I was pretty bummed because I was excited to check it out and thought it would be a nice break from the crazy business of Fremont Street. Apparently most everything closes at 11 pm on Sundays. (Thankfully we were able to get an amazing dog at Cheffini's!) It's 21+ after 9 pm, which is nice.
There is a big praying mantis sculpture at the entrance of the park that dances to music, talks and shoots fire... so that was interesting.
Overall I believe this would be a really fun place to explore during the early evening hours, but definitely don't go after 10 pm on a Sunday!