I am wondering if anyone is using SONAR X3 or Pro on a computer that has a Solid State Drive installed.  I need to up-grade my hard drive and I am considering an SSD, so I wanted to ask anyone using one, how it performs?

AWESOME improvement - highly recommended!!
 
While you're at it, add as much RAM as you can afford.
Assuming you're running 64-bit:
8GB seems to be the recommended minimum these days; 16GB or more definitely helps!
 
Also, if you have the space and $$ to drop in a 2nd SSD for instrument samples, it will be a HUGE load time performance improvement for sample-based instruments!

I've been using an SSD drive running Sonar for about three years, and I can't imagine ever going back to a HDD.
Never had any problems, drive related.
I'm in the process of cloning my 120 GB SSD to move my system to a newer 500 GB SSD.

Liquid Noise
I am wondering if anyone is using SONAR X3 or Pro on a computer that has a Solid State Drive installed.  I need to up-grade my hard drive and I am considering an SSD, so I wanted to ask anyone using one, how it performs?

That would depend on what you mean. It boots really quick and you can copy files to it quickly. I like it and have a larger drive I plan to use to replace the one I have which is a few years old now. I don't think they'll do anything to help latency if you're recording or performing, unless you have a lot of tracks.

Magnificently!
Have one on my daw as boot drive and one in my laptop.

Just this afternoon - received a Samsung 850 Evo SSD 500GB (130 GBP), used their software to painlessly clone the system and up and running, just a few hours operation. Sonar was fine, although I had to reinstall ADrums. A couple of other programs need some re-registration, but apart from that it was amazingly easy. The speed of booting and launching is lightning fast. Go for it!
 
(Edit) If you do go for Samsung and their software, the process seems to hang at 100% cloning; it hasn't hung, just wait for ten minutes or so ( I think it's validating). As suggested above, there is no intrinsic audio performance improvement in the SSD operation. I'm also sticking with Win 8.1 for the  time being until I'm sure Win10, Sonar and my audio i/f are ok. At the moment here seems to be an issue with my Steinberg drivers for Win10.
 
Jerry

Yeah, another big plus one for SSD storage. My laptop spec is in my sig.
 
I am currently looking at upgrading my intel SSD with a new 500 gb Samsung 850 Pro...

SSDs = huge boost in disk access times. I have Windows and applications on one and spool audio to another. If I used sample libraries I'd add a third.

Boot time is in the order of 10 seconds to Windows log-on screen and applications load far faster than from HDDs. The seek time is also much faster which makes accessing multiple small files (e.g. samples) incredibly fast.

I may do that too. Then again, the drive Jim put in, and configured, in the Studiocat runs FAST already. I guess instant is better, after all.. I don't have all minute you know. I'm happy to see the prices coming down on them.
 
I can't help but wonder what will be next. What computing and DAWs will be like 10 years from now. By then I will need all the help I can get!
 
J

Well for me it is a choice between Samsung 840 Pro and a SanDisk Extreme Pro. I won’t be cloning my hard drive as I am just going to do a clean install of Windows 7. And reinstall everything else.