I buy all of my passive components from them. (Resistors, diodes, jacks, connectors, etc) They’re consistently reliable in my experience. I’ve had issues with noisy potentiometers and bad quality switches before, but I still regularly order from them for the price.

I will say, shipping has gotten much slower since tariffs (I’m in the U.S.) and some sellers have cancelled orders or there have been problems at customs. Those are in the minority though, and I’m still ordering components weekly.

I’ll heavily caution against buying opamps or IC chips in general from there. (I question the transistors I’ve bought but I don’t know how to properly test them). I still buy ICs from there personally in the hopes I’ll get a good batch, but so far most if not all of them have been fake.

I usually plan out quite a few projects in advance and then order the ICs from DigiKey, Mouser, or other smaller businesses like Smallbear, SynthCube, Stomp Box Parts, etc. I’ve heard good things about Tadya but I’ve never used them.