Where do you trade?

Barter.vg is pretty good

For games I use barter.vg. It's very easy to set up want/have and find matches, easier for me than Steamtrades.

For game items like TF2 Outpost or CSGOLounge, don't really know. There are dedicated "trading" sites like tradeit.gg or cs.money but the operate as a market instead of direct trade with users, and take a cut of each sale (less than on the community market, but still something). You can try the /r/globaloffensivetrade subreddit, but it's mostly geared to big time traders rather than people that want to exchange a few items. You'll probably get a similar deal by selling and buying on the community market rather than trying your time with some of the traders who are looking for as much profit as they can.

Barter.vg is great because it lets you match with people depending on what you want and what you have.

The rest of the experience is, mixed... People are so greedy, it's often better to just buy instead of trade. It is great when it works however, both parties ending up with something they both wanted and no one feeling ripped off.

Another vote for barter. There are certainly more ridiculous offers than fair offers. And many want to offer you junk you would never play for games of some value. But you can require that any offers to you be for games in your BARTER wishlist. This is by default your Steam wishlist, but you can add to it or remove from it on Barter. This at least gets rid of the junk, but there is still the issue of reasonable asking prices. But there are lots of traders and now and then you do find someone to make a deal with.

I'm not a trader, but when i have some leftovers from bundle, i use Barter, Steamtrades, or Group Buys/Bundle Split on SteamCommunity

Not sure how it is these days as it's been a quite a few years since I've used it but scrap.tf was my goto for trading tf2 and etc items

(CSGOLounge....ouch, my heart hurts now. I miss those days..)

Anything besides barter.vg is a waste of time.