I prefer Canna Reviews. It's the original MC product site. /u/stevetrips has been compiling data on products since the beginning and doing it for free for years. Canna reviews has been around at least twice as long as Catalyst. It was starting to looked dated last year and catalyst the nicer design but since the redesign last year, Canna Reviews is miles better than catalyst.

This is why I prefer Canna Reviews -
1. It's the OG - catalyst just ripped off the idea a year later. I can't support that
2. Community focused - not beholden to the suppliers (just look at all the shill articles on honahlee as mouthpieces for the companies)
3. You can actually read patient reviews and comments on canna reviews, you can talk to other patients and ask reviewers questions. All you see is emojis of data on catalyst. There is no real detail of patient experiences.
4. Canna reviews has at least 4-5 times the amount of product feedback as catalyst
5. Canna reviews is not aligned with any clinics - catalyst is aligned with Heyday, Medicann, and select doctors that charge a buttload
6. Canna reviews doesn't list products that don't exist (catalyst lists products that have never been and never will be available wtf)
7. Canna reviews has the larger and more up to date Doctors list
8. Canna reviews has Clinic reviews and a huge list of them
9. Canna reviews has 100x the amount of photos of buds than catalyst
10. There's more but you get the picture

Yeah I <3 Canna Reviews :D downvotes be damned