I was running about 1000 machines on VMware in my previous career. It was always a love/hate relationship with them. We were able to achieve a lot of our goals using VMware and it was hard not to be ecstatic about the results. At the same time, they were always a nightmare to deal with, the software was buggy and support wasn't great.
I always dreaded renewal time because it was normal for them to use it as an opportunity to extort us. Microsoft was a breeze in comparison. It's funny because Microsoft always had such a horrible reputation. I don't know if I was just so abused by VMware or what, but Microsoft was just easy. We had an annual true-up date and we always knew where we stood with them. We reported our numbers and that was it. No surprises ever and there was never an issue if we didn't report any growth. VMware was always pulling some kind of shit and was absolutely determined to push us over budget every time.
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