Not that it changes anything, but its not Arriva Trains Wales these days. Its Keolis-Amey something or other, thankfully trading as Transport for Wales, or TFW. Same trains, different stickers...
I'd never heard of it, so having checked, its only 16 miles from my home.
Shrewsbury or Welshpool seem to be your nearest, but Welshpool dumps you into a transport-less void. Well there is the Welshpool and Llanfair Light Railway (where I volunteer) but that's not very helpful... Public transport round here is not good. I have a bus pass (an English one is not valid) but the challenge is finding a bus. Well our village (2 miles down a steep hill from home) gets 2 buses a week, into Oswestry. Wanna go anywhere else? Forget it.
Sadly, London folk sometimes forget that they live in almost the only part of the UK with decent public transport.
I suspect you'll be driving, sorry!