I am a Kagi user and have been for 7 months now. I signed up for the 300 searches per month plan because I felt like that would fit me well enough and it turns out I average 87 searches per month. That’s a lot lower than I thought it would be by quite a bit.
I only hit the 300 search quota back in March, just on the last day of that month’s plan. I do like the service, but I’m uncertain on Vlad so I’ve established using other services.