I'm very hesitant to review anything. It seems so subjective! What if you don't feel "green" cleaning products are as effective? What if your house is WAY nicer than mine? What if different people came? I can't judge! So with that caveat... I can't imagine much that is better than Exec. And I have a good imagination!
1 - they always ask detailed questions about what you want (in my case: allergen reduction). If you say "blinds", they do the blinds. They clean until it's done, not until a checklist/time limit has been met.
2 - they're amazingly responsive. When I've written asking for dates or services they don't have on the web page, they respond immediately, politely, and effectively.
3 - most: they CLEAN my HOUSE. When I get home on an exec day, I always feel like I can just relax. If it's a mess when I leave for work, they do their best, and it's clean and better, and I don't feel like I should have -- whatever, cleared the daybed first? -- They do a great job with what they get, every time.
4 - edit! I should have said, but I straight-up forgot: you can manage everything online. Picking up the phone like an adult sort of scares me, so being able to log into a web page and send a message (to my actual cleaners, an hour beforehand) seems like magic.
I will never ever switch. I will find money for this service even if it means cutting back elsewhere. And I'm a grad student.