What's it like having a Flash-free Mac?

I've been "Flash-free" as Gruber defines it since he posted that piece, and prior to that was using Flash blocking tools like ClickToFlash to minimize my exposure. The lack of crashes and heat and fan noise has been well worth it. The inconveniences have been minimal. My largest inconvenience is typically YouTube videos, whether the HTML video support is a little goofy, or a video hasn't yet been encoded. If I ever need to jump into Chrome, I use an Alfred keyboard shortcut to trigger this extension http://www.danielkramer.eu/2011/08/alfred/ , a bit of Applescript that grabs the URL of the foremost tab in Safari and opens it in Chrome. Simple, virtually painless, and I imagine my MacBook Pro smiling back me, fans turning at whisper-quiet sub-2000 rpm.

I use add-ons for Firefox to block flash, and I think the effect is the same. Some addons block even the non visible flash elements like flash cookies. When I want to see a flash video or website I just unblock it for that website or video on Firefox or use Safari for that URL.

I imagine that it would largely depend upon the nature of the user of said Mac; more specifically what apps (web-based, traditional or otherwise) are  being used + the nature of the work one does. I, for example, as a designer/developer + architect, have migrated mostly to the cloud to reduce dependency upon any particular machine, OS, environment, etc. For me portability, on-the-go solutions, redundancy + agnostic platforms are most important. This means leveraging a lot of RIAs (rich internet apps) which frees one from the the numerous factors of installation of software,  various configurations, proper versions + updates/patches, etc. These may span the gamut from graphics tools to design documentation (standard office-type docs, wireframes, sitemaps, use cases, mindmaps, etc) to unified communication tools for project management, collaboration/commenting, markup, versioning + so forth. This being the case, most of the apps that can do such heavy lifting are built upon the Flash architecture + the alternatives either pale in comparison or simply do not exist. It should also duly be noted that most of these RIAs provide for both Flash + HTML5 output for client viewing (but not authoring due to complexity). As an example, one can take a look at any of the various interfaces for apps such as lucidcharts, mockflow or conceptshare. That being said, Flash-free is just plain silly (+ i don't really have issue with CPU redlining, battery drain or other petty worries usually mentioned in this regard). Of further note, it isn't Flash that is usually the problem but rather the programming of the app - any poorly authored environment can suffer from resource taxing, memory leaks, lack of garbage collection + the whole run of things! Lastly, the inability to view Flash environments for ideas/research (be it for a client, competitors, the landscape, etc) seems to be an act of self-castration. Not only does one miss the boat on visual + aesthetic trends but also the entire aspect of interaction design, motion graphics + interface design for which Flash is known + more than capable.