I am currently testing MotiveWave against Quantower, both the free versions and i must say MotiveWave is even better than Quantower! Very customizable, it has all the features i need (i use the R Trader Pro DOM, not the MotiveWave or Quantower DOM), and it is extremely efficient. I have 9 charts with on each one multiple alerts and an indicator running and a watchlist with 14 instruments and all of their data and it is barely using 1% of my CPU (which is a fairly old one). Quantower uses at least 25% to 30% for the exact same layout (and i had a lot of connection issues with Quantower to Rithmic lately, that is why i started looking at MotiveWave in the first place and i had none of those issues so far with MotiveWave). Last but not least, they have a support forum and support actually answers to emails, with Quantower that hasn't always been the case.
Looks like i am moving away from Quantower soon!