My opinions are the exact opposite of Mr. Lambert. I wouldn't say Mel is masterful at filling time, if you believe the word to mean good as using the same exact formula for doing so night in and night out. Count how many times you hear her say "we're PlayMania, we're live in Los Angeles," "get involved, text the word play," etc. I know she has to give the information over and over, but you figure for somebody who's been doing this kind of TV for a few years in the UK she could at least change it up once in a while.
Shandi on the other hand likes to have more fun with the crew, finds herself saying some awkward things to the callers and in response to them, and all in all makes the show more fun to watch for the entire duration.
-Jason