So now that the show has closed I thought I would update with my experience using Multiplay.
Overall, I have very high praise for this program.
The Good: We were running a relatively complex sound show that required many sound cues to play on top of each other, take some out, and what not all off very quick actor blocking. This program performed excellent in this regard. Adjusting settings and control cues I found to be very easy (and I am not a sound person). I really liked that I could adjust the look of the program to put the "Go" button exactly where I wanted it and not it a place likely to be accidently pushed. Changing levels was very simple. Overall it reminded me a lot of working with SFX. I liked that this software allowed me to archive the entire show including the sound cues in one place. This seems like a simple feature, but as an SM working on a semi-mobile show it is nice to know if my laptop kicks out I have it backed up and can use anyone elses without having to refind all of the sound files. I really liked the script reference option. Although this show required calling almost everything off a blocking cues, it was still a nice feature to have. I also found the advanced option of starting a cue later into the track and cutting early really nice (saves a lot of time when I don't have to be editing sound files to make them cleaner, especially when someone else made them to begin with). Overall, in a fast paced tech week that we had this program took a lot of stress off of me just knowing things "worked".
The Bad: Not a whole lot to say here. We had two shows running in tandem and for some reason the program did not like to switch between them...it would lag or crash. For us this was not a big deal because we a had a ten minute intermission. We just simply restarted the program and loaded up the other show. Although the program allows some customizability (is that a word?), sometimes a simple drag and drop on the gui made things goes funky. This is a small gripe.
The final say. I would say if you are a small theatre company looking for a sound program that has similer aspects to qlab and SFX AND are willing to deal with a few small quirks use this program. If you are running multiple shows I would either store both shows in one file...otherwise you will be restarting the program. If you are a medium sized theatre I would say purchase Sound Cue System, it has similar functionality, but removes a lot of the quirkiness. I definitely plan on using this because I work for a very small and new company with very little funding; however I would upgrade as soon as possible.
Sidenote: I really wish we could find a program similar to this developed on the Gnu/Linux or more specifically Ubuntu/Linux Mint systems. Sound programs are the only reason I still dual boot windows; everything else including light software just works better on my Linux Partition. If anyone is looking into developing something like this I would love to help.