Neither do I own, nor have I ever shot, a SCCY pistol.
However, I have been told reliably that, as you note, they now have two different versions of the gun: One with a safety lever, and one without.

If I remember correctly, the makers of the Grendel became Kel-Tec CNC.
Maybe SCCY is run by a previous employee—or by previous employees.

The Ruger LCP is a very similar design, too.
I believe that when one sets out to make a plastic pocket pistol, the design constraints will make each maker's version similar to every other maker's version.

SCCY was started by former Kel-Tec folks and as Steve said, you'll find a lot of similarities throughout the plastic small pistol world - not many viable options, design wise.

I have a CPX-2 and really like the gun. It's not like I have a lot to compare it to, as my experience is limited, but it seems to be well put together and is comfortable to handle and to shoot. Only time will tell when it comes to reliability and dependability. Now, though I'm not any kind of an expert when it comes to firearms I do know a bit about machining and manufacturing and this gun seems to be well made and put together. We'll see.

I had a KelTec P3AT. Longest lasting cheap gun I owned. It took 2 vacations to Florida. The people at KelTec were always nice and always came thru on promises. The only time they ever sounded off to me was when I asked one day. "SO are you guys the same folks that made the Grendel P-10?" The Rep. was very quiet, then said, "well some of our engineers came from Grendel." I imagine its the same at SCCY.
I owned a Grendel P-10. $100 out the door from the same gun show as the SCCY. Only 20 years prior. Around 30 rounds and the left frame rail came off. The Grendel folks were nice too. They sent me a whole new improved model. Never had another problem with it. Never could get past the breech loading feature however. It just seemed wrong to load a pistol like a M-1 Garand.