As a CFI hours 250-800 were extremely valuable and very humbling. I believe PIC time even in a GA plane for the first few hundred hours teaches a lot of lessons. Now that’s being a CFI but I would think even day VFR flying for fun wouldn’t be as valuable but still a learning experience. If it were personally up to me, which it’s not, I would make it 800-1000 hours required with more multi, instrument and instrument approaches logged. Even the approaches it would be a certain amount of precision and non precision approaches, missed approaches etc. The multi required around 100-150, close to 100 actual instrument or at least operating on an IFR flight plan.

I say that because hours 800-1500 even doing all levels from private through teaching CFI students I don’t think there was any significant increase in experience or knowledge. I didn’t feel ready at 250 but I felt about the same at 800 and 1500 in terms of readiness.