The instance is now over half a year old and so far we've experience decent growth and minimal downtime.
I'm quite happy with it. Even though most content is still on r/Monero, we do get a handful of posts every week.
Since this was primarily set up as a fallback for the subreddit without any spam/scam bots thanks to strict whitelisting I think the initial goal has been more than fulfilled :)
I rarely look at the site, because it doesn't have push notifications like when using the Reddit app. Maybe we can come up with a solution to get push notifications?