Aleksandra, I've used Moersch's lith developers for the past five years, and I haven't found any real differences between the Easylith and the SE5. I use them at the same dilutions and in all honesty, I couldn't tell you which of my prints was made with one or the other (you can look in my gallery for examples). I've experimented with the additives of course (but only the D), but if you're not interested in them then you could go for the Easylith or just buy the SE5 without the additives.