Well, the experience of Symantec hasn't been encouraging
I've been trying to buy a simple license upgrade for a Symantec security appliance, and not only has Broadcom been mind-blowingly incompetent, they've been *actively hostile* and stubbornly refuse to lift a finger to solve the problem they've created. (Okay, they've lifted the middle finger.) This was also a transition from perpetual to subscription licensing, and it's turned my H/W product into a brick in lieu of a $$$$ payment covering the whole company.
Brocade has still been okay, but that's an old-line H/W business.