it's 2 total different iems i have the shure se215 and the monster gratitude(recently bought them on a 1 day promotion for 40€ only....!) , the se215 are definetely more bassy than the gratitude, i find the highs and mids much better on the gratitude. i use my shure se215 for electronic music(jumpstyle, hardstyle, tekstyle, hardcore), i'm using the gratitude for classical music, jazz, rap and hip hop music. i don't like to use the gratitude for my electronic music, i need a lot of bass for this music, i have to put bass +10 on my fiio e07k if i use the gratitude, while with the shure i'm good with +6/8 (i never put+10 with my shure!)