Frankly, Citrix really needs a complete overhaul on support. My experience has been the same as many who have commented. We've had a persistent PVS issue that has not been solved with multiple tickets and countless logs. We've received our best support while implementing AppLayering but it took escalation to a high level to achieve that result. I think @Webster Webster summarized it well and I know I've heard the CTP's bring these concerns up before. Partially, it has created this large community of experienced people who know how to implement and troubleshoot Citrix, but it has led to many failed and neglected implementations of Citrix that leave a bad taste in customer's mouths. We had new IT leadership start over a year ago and they were downright hostile to Citrix and wondered why we even needed it. My only guess is that had experience with bad implementations in the past. Not to mention the cost Citrix charges. Our network team has had nothing but contempt for NetScaler and this comes out in frequent sales and support calls. They have a bias towards Cisco, but they always laud Cisco support and that's what they compare everything to. I think you need to take a close look at how Nutanix hires and trains their support, and while I've not called Nutanix myself, I've heard a lot of great feedback from others who praise their support. I also feel everyone working in a support role should read "How to Find a Wolf in Siberia" by Don Jones. Great book on troubleshooting. I'm sure others can suggest other titles. I will note that the TRM program is also hit and miss, but we've had a fantastic TRM the last few years and a good TRM makes all the difference in your relationship with Citrix Support and Citrix in general.