I don't own too many Joytech mods either and haven't been a fan of mine. It's weird, I enjoy eleaf's mods far more, even though they have the "same" parent company. Joytech does
tanks and coils well (I am talking to you, CLR coil) but I haven't been thrilled with their mods. I don't know if they have different design teams, price points, or what, but I love eleaf stuff and not so much Joytech, I tend to find the machining and materials not so great.
This is just one opinion though, and if you aren't wanting the most effective TC of all time (i.e. you want to vape in wattage mode) you may just love it. I did use my Eleaf Invoke mod for TC and it supposedly has the same board as the pico, and it performed reasonably well (but I don't tend to reach high temps in my tanks OR to kick in temp protect very often, despite my puny TC settings, so I'm not certain that it's the best TC of all time, and have heard about inaccuracies with the pico. Which I did not like, for many reasons, but I am somewhat atypical when it comes to that, most people simply love them.
I think this would come down to personal preference. There are tons of Joytech fans out there. And I am one too... of their TANKS.
Anna