Overall, Hermes is not an upgraded version of OpenClaw, and it’s not significantly better in terms of cost and memory.

It’s more like another similar tool with a fresher-looking interface, but it hasn’t missed any of the pitfalls you haven’t personally experienced.
In terms of spending money: not more cost-effective. Some users report that it talks a lot and likes to tinker, opening files and searching around for small tasks, causing expenses to fly quickly.
In terms of memory: good marketing, but in reality, it still forgets things, mixes up configurations, and messes up paths. It’s not naturally good at memory; you have to put in effort to manage it.
At this stage, Hermes can’t be considered a replacement for OpenClaw. It might be convenient in certain situations, but there’s no solid evidence that it’s overall stronger.
So, the least troublesome approach for you is: keep using OpenClaw as the main tool, and try Hermes as a new tool to explore during your free time.
In short: Hermes isn’t the must-have new king; it’s just a new shop nearby. It’s okay to browse, but don’t rush to switch everything. Like the saying goes: many AI tools, if you’re lazy enough, you don’t need to learn them. They might just disappear on their own.