The stache is looking good indeed. Many things you ask just depend on personal preferences and nobody here can answer that for you. One guy likes a solo stache, an other not. I like my stache trimmed, other prefer a handlebar or walrus style. Some use products, others dislike it... In my eyes, a solo stache looks best and stands out most when you shave the rest more or less regularly. A bushy stache works as well with a some days stubble, but only with good growth. If one has so-so growth in other areas, one should not let that get too long with a solo stache. 

- Successfully certified by myself. -