I think Leafly is really more intended for the retail market, and in that regard, it's getting better. The reviews are basically Yelp for weed, both in style and usefulness. It's great if you're looking to buy retail marijuana and you want to see which dispensaries have it in stock, in what amounts, and at what price. There are more dispensaries than grocery stores in my neighborhood, this is actually a great time saver now that they've improved their database management and the online inventory occasionally matches the store's inventory.
For strain info, I check leafly after I've checked wikileaf, seedfinder, allbud, the breeder's website, jbc, glg, instagram, and attitude.