We have used NETSCOUT and Gigamon Deep before. In comparison, Alluvio AppResponse provides very detailed monitoring.

No, we didn't use any other NPM/APM solution before Riverbed, but we tested some competitors.

BMC TrueSight. Easier to use and better functionality.

This is the only product I use. I've never worked with a different solution. I don't know what else might be similar on the market.

No we didn't.