Jiordano

Hi all, I chanced upon this forum searching online for reviews and basically sussing out which IEM to get for my $100-200 budget. I've sort of shortlisted Soul Sl49, Shure 219, s4i or s5i. However I'll like to get feedback and advice on them. Are there anything I should know in terms of build quality, durability issues etc? Would you recommend anything else? Thanks heaps! J