Hey Jen,
I have not tried the plaster yet. I have tried just about all the other techniques though. The last one I tried was the Ralph Lauren metallic faux finish. All I can say about that one is I'm glad I picked to do it in just the bathroom. I don't think I could have worked on a whole room. Very time consuming and you need to do it perfectly or do the whole room again. I thought I was finished once then DH found one of my hairs stuck in the paint and I had to go at it all over again. In the end I love it and so does everyone that has seen it so far.
My brother just did the suede finish on the lower portion of the walls in his billard room. It looks great but it took them awhile to do also and they said they would not do it again. Let me know what you decide, I'm interested in how it comes out.

venetian plaster is a generic term for many types of plasters with varying grit and composition from shiny to dull, ultra smooth to stucco rough. Most popular is marmorino although veneciano (the smooth one) is also common. The marmorino is more subtle and natural looking, very durable and forgiving vs. the veneciano can require alot of burnishing (polishing). Alot of synthetics are on the market from Home depot and lowes, but of late you can get pro-products via the internet with superior results and durability. They may cost more but are worth it. I like Vero-Rialto products based out of LA, great customer service, they even make a sample for you. The anaglyptic papers are great for ceilings. I paint them silver and do a wash over them. Hope this helps.I've been doing it for like 15 yrs. Good Luck!