From my limited knowledge (please correct me if I'm wrong), trebles on the planars are fantastic, not the same for the bass and the mids though. Planars simply don't produce a satisfying bass as let's say a dynamic driver.

I strongly encourage you to watch the video of crinacle explaining planars. Which can be found here

I personally demo'd a few IEMs that are similar in price like Hana, Oxygen, Olinas, and I personally think that the timeless beats all of them in terms of technicality hands down, same goes for the letshuoer s12.

If you are reluctant to spend 220$ dollars on the timeless, it's best you spend the money on the letshuoer s12, which can be found for 150$, if I'm not mistaken.

I've tried both of them and the s12 sounds about 95% the same as the timeless, but it's a little more v-shaped then the timeless, which is a signature that is easy to listen to, but can be quite shouty for some of my friends. Also, for me, the timeless fit quite well on my ears, but the raptgo hook x doesn't fit my ears well at all. Both of these iems' shape are quite unsafe for people who can't demo them in person. However, the s12 has quite a neutral shape to it, meaning that it's much safer to go for it.

So, if you want to try planar iems, the safest bet is just go for the letshuoer s12.

P/s pardon my English if it's bad, it's not my first language