Of course, you may be sentimentally attached. Perhaps you need some courage
But you will have to be the horse that drinks the water. What do you have to lose?
"You can lead a horse to water but you can't make him drink."
More or less...
if you are emotionally attached to the ML and are kind of reluctant to make the change, you probably won't, and even if you do, you may be subconsciously biased against the ARC and end up not liking it too much.
If you are willing to try the ARC, you may well find you prefer it to the ML.