Very easy to use. No problems with temperatures, agitation and time. Lasts a long time. Negatives are sharp with good tonal range due to compensating effect of two bath development. Excellent for a beginner who does not enjoy film development.(posted 8141 days ago)However, I just tested Delta 100 and T-max in Ilfosol-s (Ilford's Xtol). The grain is significantly better. Delta better than t-max 100. I'm going to try Delta and Ilfosol-s for a while. After examining several test prints, I think I can get almost grainless 16x20's from 6x6 (actually 55x44 mm in a blad)or about the same grain as 6x7 full frame Tmax 100 and Diafine.