Yes totally. These are genuine shops, like the one I got my 80s from the guy isn’t really approachable. If he didn’t sell me that maybe I’d still be on something other than sub ohm, but I’m glad to be on the journey now.Room temperature should be fine for your juice.
If this is the same shop that gave you the previous advice, I'd be wary, the people in the shop want to make sales and may not even be vapers, the people on this forum just want to keep you vaping and off cigs, and there is a vast amount of vaping knowledge and experience.
Have not had a lot of bad advice from shops