Greetings! As the title suggests, I'm looking to finally replace my 215s, which I've used for a number of years now. Lately, however, I've had serious quality issues with my last two pairs with the plastic/adhesive flaking away over time and poor connection issues with the ridiculously overpriced cables. Since Shure's customer service dept has stonewalled me thus far, I turn to you. My criteria is as follows: - My budget currently allows for something less than $500. - I need a similar level of isolation that the Shure IEMs provide. - I enjoy a fairly-wide soundstage with a nice "punch" at the low end, and accentuated mids. It should be noted that I purchased the Simgot EN700 pro IEMs and was quite impressed with their signature, though the isolation I need just isn't there. I'm waiting on a set of Comply tips to arrive this week to hopefully remedy this issue, but I'm worried they won't for some reason. If additional clarity is needed, I'll be happy to answer any of your questions. Thanks in advance, and I look forward to hearing from you!