Although I don't own this gun, I had the opportunity to try out an F.I.E. Titan .25 auto pistol. Calling this pistol a "Titan" is definitely an oxymoron.
Although they don't make them new any more, they are still available on the used market in the $50 average range. At first glance it looks similar to the Colt Junior or Astra cub, but there are some important differences. It does not have a magazine safety, and the magazine release is at the bottom of the grip, not a button like the Colt. It is single action, with a 6 round magazine. The safety is on the left side, flip rearward facing for fire, turn clockwise to forward facing for safe. It was easy & quick to do with the thumb of my right hand, but might be a problem for left handed shooters. It has a half cock position on the round hammer. The safety only blocks the trigger. The barrel's rifling looks good, and there's no pitting or corrosion anywhere on the handgun. The trigger pull has a approx. 1/8 inch light takeup travel before resistance is felt, and then breaks cleanly. I'm guessing, but the trigger pull feels like it's it's in the 5 lb. range. It doesn't have a tip up barrel like the Beretta or Taurus, but it's extremely easy to chamber a round. The rear sights are just a notch at the back of the slide.
It's got a 2.5" barrel, it's 4.5" long, almost 3/4" thick, and height 3.75", about the same as a ruger LCP with a flat bottomed magazine. The advantage in size that it has over the small 380's and even other cheap 25 autos like Lorcin, Jennings, etc, is the width. The other 25's look like a brick compared to this handgun. It's about as thin as you can get with a 25 acp.
The Titan 25 auto can easily fit in even a shirt or vest pocket. I have average size guy hands, and I can completely cover up the gun with the palm of my hand and my fingers outstretched. (even with my thumb sticking up) The owners wife commented that she could easily conceal it even if she were wearing a evening dress. In order to get significantly smaller than this type of handgun you'd probably have to go the mini revolver route.
Fortunately the guy that inherited the guns inherited some partial boxes of ammo too, and 3 different brands were used for testing. Sellier & Bellot, PMC, and Aquila. We fired a total of 60 rounds. There were no FTE or FTF.
This first photo is the Sellier & Bellot. In the pictures, where it says 3 shots at 21 feet, it should be 2, not 3.
The 2nd photo at ten yards is the PMC. This turned out to be the most accurate ammo for this particular pistol, with no key holing. Group size was 2 inches, slightly to the right of aim for my eyes. I also fired the PMC ammo at ten feet on a different target, but didn't take a picture of it as the phone was dying. The 3 holes were almost touching each other, with one directly on the X spot.
The Aquila ammo was fired at 7 yards, and was six shots instead of three. The reason for 6 shots was the first 3 shot group was so large I thought it was me and fired a 2nd 3 shot group. These rounds key holed the most, with some holes that looked like they almost hit sideways. Not a slight on Aquila, it's possibly just this particular gun prefers the PMC.
Some have said the size advantage that 22 and 25 autos used to have is a moot point now that guns exist like the kel tec 32 and P3AT, rugers LCP and similar size guns. They are only a little more than half an inch longer in length, and shoot cartridges that are more powerful than a .25. Even though I could only get a 2 finger grip on the grip, it didn't matter with the almost non existent recoil. Even rapid firing it one handed was easy, so I guess it still has that advantage over a micro 380. You can find plenty of failure stories with the mouse gun calibers, but you can find success stories also, just like with any caliber. I said in my previous review that the 32 S&W would be my last choice as a defensive caliber, but even it might be more effective than a 25 acp. Still, this gun is safe to shoot, and the 1901 H&A isn't safe anymore with modern smokeless ammo. It can easily put 7 rounds in someones vital areas at typical handgun defensive distances if the shooter does his or her part, which might be required to be effective for this round.
It isn't the best example of a .25 acp or the worst. It is reliable and quite accurate for the distances a tiny defensive handgun is typically used. The P32 is not much larger however, and shoots a more powerful (cough) round. If someone is going to carry a .25 auto though, I guess this particular handgun isn't a bad choice. It proves that a cheap gun can be reliable and accurate with the right ammo combination.
My thought was when I heard this was, why can't the defender just beat them over the head with it instead?
This btw isn't a target gun. 
. (YMMV)
. Unfortunately the backer was chewed up pretty bad and when I removed the target the hole tore at the top. The actual hole created by the 5 rounds was smaller 
.