Many thanks!
Honestly I think reading this story has been a lot of fun over the years. They definitely are taking the opportunity to add some elements to his version (like Ishtar), but it maintains the overall story path. Fair enough as well that the mangaka would want to add a personal touch since just purely adapting the story would probably feel a bit dull.
Melt has utterly been the star of the show in this adaptation and has gotten to shine as much as anything else in Fate has allowed. Her early fight against Tristan showed that off. Just beautifully dodging attacks, getting increasingly heated due to her Sadistic Constitution, and utterly tanking his noble phantasm before delivering one heck of a strike in return. I think moments like that have been worth this adaptation being made.