Mid-fi tube vs high-end SS

Hello everyone. I am new here but not new to audio. I’ve been meaning to buy a high-end permanent SS amp for 2 years now. But not sure how much improvement I can get.

A little about what I have. I use a high-quality tube amp I bought for around $1,500. 55 watts per channel Class A. With upgraded tubes it’s a little over $2,000. The amp I have is the Musical Paradise mp-501 I’ll link below. Using upgraded Kt-170 tubes along with some nos 5693 red tubes and 717-a tubes.

My audio knowledge and listen ability has improved substantially these past few years thanks partly to this tube amp. Sorry for the long-winded intro. My actual question is, how much improvement should I expect going from this tube amp to something high-end SS like the Gato 150 and the incredible DVA M225? Very little reviews on the Gatos, I’m hoping I could get some help here, even anything about the Gato 150 from users would be helpful. Ty

https://www.musicalparadise.ca/store/index.php?route=product/product&path=59&product_id=55