I've been experimenting with Alchemy Viewer, which is very fast on Opensim but have noticed that it doesn't rezz textures from the Opensim Texture Library. I would, therefore recommend using Firestorm when visiting Bernicia, as I do use some textures from the OS Library for parts of the ground.

Also, Bernicia will be moving to a faster server soon - the new server is in Alpha development and I'll let you know when it's ready to go public.

Happy Opensimming.