There is no argument that the Photography Suite at $10/month USD, or the full Creative Suite at $50/month USD, is a great deal. If you are a creative professional and your day to day work involves 2-3 Adobe applications. This is cheaper than before, and you get access to more tools. It's a win.
The issues appear at the edges in the following forms (no particular order):
1. Subscription Fatigue
2. Long-Term Data Access
3. Casual Cost-To-Use Ratio
--------
1. Subscription fatigue is what happens when you start paying for many things monthly. It gets hard to keep track of, hard to ascertain the value per dollar. Backblaze, iTunes storage upgrade, other software services, cellular, personal costs like internet, utilities, car, mortgage... add Adobe CC. It starts to overwhelm. People will, rightly, look to minimize recurring monthly expenses.
2. What happens if you stop paying? Your data is now inaccessible. You can't archive an old version of the application along with your files. For an artist, the portfolio is important. Being able to reach back into your history of work is critical. All Adobe applications should offer graceful feature loss like Lightroom. When your license has expired with LR, you can still access and export your catalogue.
3. For more casual users, paying that $50/month for something you only use sometimes is hard to stomach. It would be great if it was possible to access in a more granular way. A daily or hourly price model would be much more serviceable. In the same way modern VPS company like Linode or Digital Ocean charges hourly up to a cap. This allows a lot of flexibility to dip into an application for making a resume, or a website, or accessing your work history. Pay a few bucks, but not $50.
My thoughts as a somewhat resentful CC subscriber looking to move to Affinity/Capture One/etc...