shindo vs. atma-sphere

i've been auditioning shindo and atma-sphere pre-amps, particularly for their phono sections and was wondering who else has compared the two brands.

which gives better sound and is easier to live with over the long term?

i like the shindo sound, but the atma-phere seems like it will be easier to maintain/repair and get replacement tubes. plus, atma-sphere is always upgrading their electronics and upgrades are relatively easy to get.