Just got Comply tips Tuesday. When I used to wear other companies' in-ear monitors, I'd always go for the memory foam because I couldn't get an optimal seal with their silicone tips. So I was glad to find an available option for the AirPods Pros.
The Good: They're not passing the AirPods Pro "fit" test, according to my iPhone, but I feel like I'm getting the same level of bass (which is what tends to suffer without an airtight seal for in-ear monitors). They feel infinitely more secure than the silicone tips, and I can wear these for longer periods of time without discomfort.
The Bad: I do suspect these are going to degrade quickly if I wear them while exercising. At $25 for 3 pairs, they're quite pricy compared to the Shure foam tips (those were 5 pairs for $15). One tip did pop off when I tried to adjust an AirPod while on a phone call.
So far, I'm glad to have purchased them.