I had an X3 FFP on my HFT. Focus down to eight yards. IIRC, has about 120 degrees of rotation from 10-55 yards. Reticle is .2 mil increments. Clarity and sharpness was no better or worse than say Athlon's or Element’s in the same price range.
I considered upgrading to the X7 but I went back to the Hawke Sidewinder when the Gen2 model became available because of the generous eye relief and an eye box I’ve found second to none.
Overall, they are a great value.