2016 tacoma audio upgrade question

Hello I'm a loyal tacoma owner since 4 trucks ago. This my 1st ever post. I've bought a 2016 tacoma double cab WITHOUT premium audio. I'm having Best buy install a 8" kicker hideaway sub and a 600 watt kicker amp this week I've already purchased everything to do this job cost was 750.00 including labor and all hardware it was a little more than I wanted to spend but could not find an all in one place for cheaper to do it. My question is what kind of difference will I notice? Im NOT swapping out factory door speakers just amp and sub. I Listen mostly to 90s Rock, old school rap and occasional bluegrass music.

 

....seems trollish. Will be tons of bass if you turn the knob for it. Everything else will sound the same.

 

Man im sorry to ask but what does trollish mean? I even google it, there's no definition. What's trollish about it?