Nothing fancy here but I have purchased a few more under $100 pairs. After the purchase of the Moondrop Aria I have since purchased the TIN T2, TIN T3 Plus, BLON BL03 and the final E3000. As a newbie to IEM's I have found some to be more comfortable than others, as is the case with different tips. I have really been impressed by the amount of sound that these little things can generate, and probably even more given how inexpensive these are. Sure, I know that they get to being much more costly. I'm not sure I wish to venture too far down the rabbit hole on IEM's. I like them for portability. And the cheaper ones won't hurt so much if they break or get lost. How much better does it get at the $300 price point? $500? $1000? I'd rather dump $500 or a grand on a pair of over ear headphones, personally.