Strains vary by the plant. I had a strain called Mendocino Purple, I loved it! I couldn't find it for a long time. Finally found some and I was disappointed, it didn't have the same affect or taste. I use different dispensaries the second time was from a different grower. Many strains you can tell by the taste what you are getting.
Get a little to try out. Keep track of what you like, then go back and get more. If it taste bad and medicates well, you weigh the good with the bad. I have no desire to buy something called Cat Piss I've seen that around. I've heard it tastes terrible.
The legal is expensive in Wsshington. If you wait too long they may not have the same strain left. I don't know what their turn around time is with their cannabis it probably varies from store to store. You can get to know the bud tender and ask questions.
I have never been in a legal rec store. I live in Washington.
EDIT
Oops wrong thread, oh well