I agree with Keira above, just maybe another point to consider: I feel like most nurseries nowadays work on montessori principles (eg encourage independence and skills etc), and if yours does, there might not even be that much difference. If he's happy, I think that's the most important thing. I was also looking at montessori but it was a bit further away but in the end i am so gland we went with the one that's just around the corner. She's very happy there and thriving and learning all those new skills and I don't think she's missing out on anything. Obviously all nurseries are different but just something to consider maybe
I moved my son at the beginning of March to a nursery that opened up on the business park where I work. He started his initial nursery at the start of November. He settled in there really well, but after only a few weeks, I started to notice problems, so I wanted to move him (the timing just happened to work out well for us). He settled into his new nursery fantastically. No tantrums when I dropped him off (like he'd started to have at the first one), and he goes in and hugs the staff straight away in the morning. His new nursery is run so differently, and we've seen such a difference in him at home afterwards. For us, it was an easy decision as I wasn't happy with his old place and the location of his new one saves me nearly £100 a month in petrol. Could you book some settle sessions while your LO is still in his current placement to get a feel for how they run/if he enjoys etc.? X