2 months ago I have purchased the Responsiv XP for my trainings, workouts.
Since I have put more than 500km in it and I can't complain.
Very dinamic and close to the ground, it remains very confortable and holds well my foot in it.
My longest training was about 3 hours on soft and technical terrain. I wouldn't recommend this shoe in case you would plan to run longer distance in it. On the other hand this is the perfect shoe for sprints, interval sessions or races not longer than 30k.
The dry or wet condition is not a problem as the log provides a good grip.
The lace holds well and once tied won't move at all. The tongue ergonomy is a good idea, feels very good and i hardly feel it during my run.
The design with the yellow and blue colours looks very good. I love it.
The soles and the fabrics are very durable. After 500km a few wear and tear are visible but nothing serious. I think it will bear and additional 500km
To summarize, for sprints, intervals and shorter race (max 30km) I really recommend this shoes. Its confort, lace and sole makes it the perfect shoe for me.