I have the same phone. It’s fine. I keep my Pixel phone with GrapheneOS on it at home for banking apps, Briar, and a couple other things. A few things to note:

1. The slider on the side doesn’t turn off the GPS antenna, so you can still navigate with the GSM module unpowered using the default maps application or another offline-capable app, which is nice.
2. The company advertises the slider as a tool to protect you from “harmful 4G waves”, which is a bit concerning for their direction as a company.
3. Mudita decided to completely abandon releasing their software under an open-source license for this phone, which sucks.
4. InkOS is an open-source launcher that was designed for the phone and it’s great.
5. Software features that were advertised even before the launch of the phone are still not available not planned to be available (certain stock launcher customizations in particular)
6. Not the phone’s fault, but you can’t have Signal installed on multiple phones for the same account, so I have to turn on the slider on my phone to make a Signal call at home instead of being able to use my WiFi-only Pixel, which is a bit annoying from a privacy perspective. EDIT: I can also use my computer as a workaround, it’s just a bit of a clunky solution.