These ADHD coaching services come up a lot, and this is the general advice I give out:
Always start with your insurance options first. Many people are surprised to learn that they can get therapy (for ADHD or otherwise) for as little as $10-20 per session through their normal health insurance. Telehealth has been normalized, too, so it's likely you can do it from home.
Always check insurance first to evaluate costs. Consider how deductibles play out through the course of the year, too. This coaching service is a lot to pay out of pocket relative to what many people in tech would expect to pay with insurance involved.