I have a lot of Z-Wave switches/dimmers (mostly Inovelli; I have used Zooz in the past) controlling smart bulbs (mostly Hue via a Bridge integration, but the idea should be the same with any). I'm not saying any of my use is "creative," but I still think it's pretty neat that you can basically make these switches work like a "regular" switch/dimmer. I can:
- tap up to turn on the lights
- tap down to turn off the lights (neither of these is exactly groundbreaking...)
- press and hold up to brighten/dim up
- press and hold down to dim "down" (seems like both of these should be easy to set up, but it's difficult with some hubs or devices but is pretty easy on Hubitat with most devices)
- use muti-taps (or the config button on Inovelli) to activate different "scenes"/settings/states for the bulbs, e.g., a single-tap on might set it to warm white like I usually want, but a double-tap up might set them to cool white, or two taps down might activate Hue's "Relax" scene (very warm white and slightly dimmed)
Really, you can use the taps (or config button on Inovelli) for anything that Hubitat can do, even if it's not related to lighting at all. The config button on one of mine toggles on/off a tower fan nearby, for example. Five taps down in my bedroom also activates my "good night routine" if I go to bed early enough that it hasn't already happened on its own (activating night mode, turning off all lights that might still be on, etc.).
As a side note, I know one reason staff say native drivers don't support all five taps on these is because no one can remember them all. I understand why that can be an issue, but I have sort of a system: I like "up" taps for representing things that are "on" or "bright" (hence, my 4000K scene) and "down' taps for things that are vaguely "off" or "dim" (hence the "Relax" scene and night mode). Maybe some mnemonics may help you (or your family, but don't count on most people figuring this out besides you...) remember what does what if you set up a lot. 
For the "delay," I have not seen this be nearly as big of a deal as some people have blown it up on the Inovelli forums--and perhaps elsewhere--to be. But I'm also the primary user of the switch/dimmer and understand how it works; a slight "delay" is pretty much inevitable, as they have to make sure you're not doing a multi-tap before it registers a single tap. I believe Inovelli is working on updated firmware to allow you to reduce this (as-is, you can get by with some really slow multi-taps, so this should help it register single taps faster), and you can already disable multi-taps entirely to register a single press instantly (but then you loose scenes, and I don't want that).
I'm not as familiar with the Zooz but once had one set up similarly to the above (except with fewer taps). Their "smart bulb mode," if I recall, actually internally tracks a level, so you can use an app to "mirror" that to your smart bulbs if you want, rather than responding to button events and manipulating the bulbs based on those. I actually prefer doing it the other way, pretty much just treating the dimmer or switch (either of which would work for this purpose) as a remote/button device, but some people think this other way is more intuitive. You will lose the level indicator on the dimmers this way, and I think Inovelli is also working on a similar mode to accommodate people who prefer this, but I'm really good either way (I can see the level of the lights fine on my own
).