Greg,
We've not specifically looked at NetScaler [but your timing is good], but we are engaged with Citrix and are looking at multiple opportunity's where we have touch points in our products and frameworks, one of these is NetScaler.
Hopefully you have seen I have a published Technote the covers F5 BigIP.... in theory all of the key features exist in NetScaler.... basic SLB / HChecks / RADIUS 1812/1813 / HTTP / HTTPS so it should just be a process to build and test.
That's the good news, the bad news is that its not a project I have on my radar in the short term [before Q1 2016].
HTH.
F5 TechNote here CPPM and F5 Load-Balancing TechNote v1.0.pdf