I've just come back from a weekend touring mid Wales. We used Riverbank Bed and Breakfast on the bank of the River Irfon in Llanwrtyd Wells. Excellent accommodation with secure indoor parking for the bikes and a great breakfast. Really well positioned for some great local rides, especially the Devils Staircase. Close enough to the Brecons to the south and Snowdonia to the north. Makes a great base. Really biker friendly, would recommend.