I've heard of tetenal, but not arista, one being half the price of the other. I'm gona be doing this on occasion but probally not heavy enough to actually run thru all the chemicals. That and I prefer not to do so many baths ( though its probally best. )
Film I'll be possibly developing in the future are as follows
-Kodak Ektachrome 50T, 64D, 64T, 50D (expired 1980)
-Fuji Velvia 50, 100F, 100, Astia 100F, Provia 400F
-Cross Processing Films such as fuji NPH, Reala 100, etc.
Or recomend another kit under 40$ that is in stock and ready to ship.
I've not used either of those specific products, but Arista is Freestyle's house brand. They've got various suppliers for Arista-brand products, and I don't happen to know who makes their Arista E-6 chemistry kit. As to price, note that the Arista kit makes 1 pint, whereas the Tetenal kit makes 1 liter. Assuming both figures are for all items and that they've got the same capacity per unit volume, that brings them to approximate price parity.