There is no comparison needed. Each of these apps has a place in one's production tasks. You don't compare a donut to a glass of orange juice. They both taste pretty good. One is for fun (and fat). The other is for thirst-quenching and health benefits. Adobe Photoshop is for …
Photoshop is a useful tool for everything from creating social media graphics to editing and sizing photos. There is a bit of a learning curve, so you need to have a bit of experience to master it and use it for a variety of tasks. You also need to have a good sense of file organization so you can find files quickly without losing track of them.
If you have high resolution images, it does a remarkably good job at resizing and resampling. It has to have something to work with, so I recommend it only be used on good quality images. On four to five megapixel images, I don't think it works as well as on my 20+ megapixel photos.
We get a lot of use out of this software. It's vital for work with production in our industry and has a lot of cross-functionality - creating social media images, retouching photos, editing photos, creating gradients, and more. It's pretty fuss-free in that we haven't had to reach out to support and the program hasn't crashed on us. We are trained on the software (so again, this isn't for beginners), but for detail-oriented designers and creatives like ourselves - it's a no-brainer.
Adobe PhotoShop is a professional-grade tool that requires months/years to get a grasp of how to use it well. Even then, after over a decade of using Adobe PhotoShop both casually and professionally, I feel like I'm still unfamiliar with a large percentage of the available tools. Without a dedicated training program, it can be extremely overwhelming and/or you may not get good use out of it. That being said, once you do get comfortable with it, the layout and workspace are excellent with myriad shortcuts that speed up your workflow exponentially. Put in the time to learn it, and you'll love it.
Adobe Photoshop is very reliable, but is never 100%. There have been times when Adobe Photoshop has had trouble opening, but nothing a little computer restart couldn't fix. I use Adobe Photoshop on a Mac for both work and at home on a daily basis, and I would be lost without it.
Speed can be an issue when you are dealing with large files for large format printing or billboards. When working on web images, speed is not an issue.
While I never contacted Adobe directly, there is so much content out there in the form of YouTube videos, Lynda/LinkedIn learning that almost any issue, including bugs, can be worked around (and this method is generally faster as there's no turnaround time involved).
Topaz always responds to my questions in a few hours or a day at most. They've been able to explain their answers and give detail I needed to complete my work. Their instructions are quite clear and easy to use. I haven't had to reference any third-party support sources to get answers.
I took a course so it really helped. I didn’t take the course until much later after beginning to use it, so I wish work would have sent me right off the bat. It would have alleviated a lot of frustratinon
[Adobe] Photoshop offers the best photo editing as well as content creation. The layer-by-layer approach of [Adobe] Photoshop helps to work between two apps or even two PCs of entirely different Creative Cloud apps seamlessly. The stability and the speed of the tools in photoshop make it even better to make a canvas of creativity.
Since they aren't direct competitors I don't expect PaintShop to hold up to a specialized piece of software. PaintShop allows you to resize but it's not intended to resample as well as Gigapixel AI.
It does take a long time for the program to start up, however
The most difficult task is onboarding new employees into Adobe PhotoShop who don't have experience with it. It's an investment for their future so we see value in it.