Having played in some of her games, I can attest that this is absolutely worth it. Ash is an amazing GM with a variety of styles. Want something unsettling and surreal? She can do that! Want something action-packed and exciting? She can do that! Want something that tugs at your heart strings? She can 100% do that.
If the price seems intimidating to you, consider that it would be for a group of people and 30$ a piece for a night of amazing storytelling isn’t too much at all. Also, you’re essentially commissioning a custom performance, (and GMing is a performance). With that in mind, her rate is an absolute steal!