I can't speak to the Sansaire or Nomiko (except that Nomiko has a good mailing list) Serious Eats did a comparison of a few "home" units awhile ago and presented some useful comparisons. E Rex on here has the home version of the Polyscience (if I recall correctly) and speaks well of it. The Anova pro model looks interesting but at 2x price I'll stay with V1 and V2.
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