What was the other company? And which did you feel worked better?
Primeval labs; I logged their Epi-GH product which was epiandrosterone and MK 677. It no longer contains MK though.
It's hard to compare since I added epiandro in at the same time as I bumped the MK dose up to 20mg.
I personally prefer a 10mg daily dosage, I sleep like a baby and the lethargy isn't there anymore during the day. It greatly helped my appetite as well.
10mg is the right dosage for me although some people find better results with 20 or even 30mg.
My suggestion is to experiment with it yourself and see what works best for you. Find out what you feel your best on. Nothing's worth taking if it makes you feel like sh1t.