Yah I know them 3, i'm in Mill & Fish & Things quit offen.
( Joecoral ) i'm in Burry Port.
I would say plant wise of the 3 Shops that you said in the Swansea air, Fish & Things is best as they have a little more to offer an the prices are like £1.25 but thats per plant NOT pot. But will say that they are well rughted.
I'm just looking for something a little diffrent, Not sure what but when I see it i'll know
Thanks