I still use the EQ, Gate, and Compressor all the time. Delay a little but I've been trying others. The Modulator is pretty nutty when you want to experiment. I actually like their no-fuss UIs!
 

Sonitus Gate is one of the best gates you'll find anywhere.  Sonitus reverb always seems to fit well anywhere you use it.  It makes a great place-holder reverb that you can swap out with more boutique choices later, but you may well keep it in, as it's a very neutral verb.  Also, I'm still a big fan of the multi-band compressor.  Sure, it may not be as precise as the newer linear multibands, but it has a very small resource footprint and often sounds really nice.
 
I've often wondered why CW has never given the Sonitus plug-ins a new coat of paint.  They still stand up acoustically, but look pretty dated by today's standards.

I've seen Mr. Anderton advocate for them often. One good thing is that they're included in all three versions of Sonar, so when he does his Friday Tip of the Week using them (as his tips often do), all users can benefit.

I use the delay pretty regularly, sometimes the gate...not keen on the reverb though, it sounds a bit 'brash' for my taste.
Everytime I use a different delay I always end up going back to the Sonitus one.

Thanks everyone:
Your responses were great and confirmed that this plugin is not simply a place holder as I had imagined.

Thank you!

Not much anymore. But...
 
I like the delay a lot and the only reason I stopped using it was a bug that caused clicking during tempo changes when tempo sync is enabled. I can work around it by automating the Sync button, but it's a nuisance. But if you don't have any tempo changes it's a wonderful delay. Unfortunately, I am big on tempo maps.
 
I used to use the multiband compressor a lot, mostly as a bus compressor, before switching to dynamic equalizers. It's still quite good and very easy to use. I just like MDynamicEQ better.
 
The modulator is also very good, and I still use it sometimes as a flanger, even though I've got fancier plugins that can also do that.
 
The compressor remains my favorite in the suite, and still gets used occasionally for sidechained compression. I like the way it graphically shows the level bouncing around the knee, which is a nice convenience for setting both threshold and knee. I like that the knee is continuously adjustable. I have other comps that do these things, but the Sonitus' graphic is simpler and simpler is often better.
 
I once spent a day opening up old projects to see what I'd used way back when. Two of them had especially nice-sounding reverb on them. When I found out what I'd used back then it surprised me: the much-maligned Pantheon and the I-don't-get-no-respect Sonitus Reverb. It was a reminder that the Sonitus reverb was pretty good.
 
And all of them are very CPU efficient. Back in 2003, programmers paid more attention to optimization out of necessity. Nowadays, it's an afterthought. Unfortunately, that's also an indication of their age. They haven't been enhanced in years and probably won't ever be.
 
But the bottom line is that you can make a great production using nothing but the Sonitus effects. Let an experienced mixer using only stock plugins go up against a novice with every plugin known to man at his disposal. Experience will trump software every time.

Bit, I'm looking at buying mautodynamiceq or mequalizer. How good are these? 😊 just an opinion....

Joe_A

Bit, I'm looking at buying mautodynamiceq or mequalizer. How good are these? 😊 just an opinion....
 

Anything Melda sells is great! Since the 11.x update, they have really taken off IMHO.
 
 

Apart from the Sonitus Delay, most of these plugins had fallen off my radar by now. I'll be revisiting some of them as a result of reading this thread.

Audioicon
However, recently, I enabled the EQ on the RME UFX Plus and I was just blown away, it's 3 Band very simple but extremely clean, no color as in tube like or tape saturation like sound.

Good Day, funny you say, it does sound great I often use RME EQ while listening to a mix to see where I want to adjust and try to emulate it, also compressor, reverb and delay. I dont want to record with these FX applied, but would like to use as external effects on recordings, I had just been looking into how to do this.  Do you know the best way to do this?  
 
Otherwise I often also use various Sonitus FX. 
 
Cheers