At the side bar of Ableton you can see "z3ta+".

Avicii used the original z3ta+ by cakewalk in his older tracks before switching to z3ta+ 2. The preset is called 'crispy arp c1' which is located in 'Section B' in the original z3ta+. Avicii used the preset in his bootleg of 'Sex is On Fire' by Kings of Leon in 2011 April 15th, a few months before z3ta+ 2 was released.

Along with Massive and Sylenth, Knife Party's Rob Swire lists the Z3TA+ as one of his favorite software synthesizers. He calls it "such a sick little synth"

Users in the Random Forum Title forum identified the bassline from the Feed Me track White Spirit is a preset in Cakewalk Z3TA+. User DreamWalker says, "I believe it's called "some more FM" from the C tab." Original source here.

Mat Zo lists Cakewalk's Z3TA+ as one of his favorite software synths.

In 2:24, we can see that his 4th channel is z3ta+

"For a lot of the bass sounds we just start off with something simple and then mangle it, or use our old favourite [Cakewalk] Z3TA plug-in. I love it, for anything. For some reason it's one of the quickest go-to synths for anything I want to do. I just think of a sound, go to that and do it, which I don't really have with anything else. There's sounds you can't get from Z3TA and that's why we have analogue synths, but at the same time, if you want something digital and fucked-up, they aren't really going to do it, except maybe for the Andromeda. If you want something like that it's not going to come from a Prophet. I find with Z3TA, more than anything else, it just fits right in against drums, the way that we do them, and I've never found anything else that does it so well."

My favorite plugins are Z3ta+, Sylenth1, Drumazon, Microtronic and the UAD DSP-Card. The only real hardware I use is a Virus TI Snow for those nasty screech sounds. I have a pair of Mackie monitors, but I do my mixing and mastering mostly on my Sennheiser HD800 headphone. That headphone is absolutely my favorite piece of equipment!

I interviewed iLan Bluestone on a Gibson Tour Bus about his music production style using SONAR. He mentions using Z3TA+ as well in the interview. Cakewalk is a Gibson Brand.

At 0:21 in the YouTube video "BassHunter Making Music," Basshunter is seen using the Cakewalk Z3TA+ Software Synth, as indicated by the tab menu displaying options like Plugin, SMP, Ins, Misc, and Func.

AWE's Razer Music page lists Z3ta as one of his plugins.

DJ Splash has been using the Cakewalk Z3TA+ Software Synth since he began uploading his music creations on the Danish music website MyMusic.dk in 2004, as noted in his biography.