I've been using this line of shavers for about 2 years now. The battery just died on the first one, and I just ordered a replacement so I figured I'd leave a review.First of all - battery issues? Yes. The first two weeks I used my shaver, I thought all the reviews about the poor battery life were either unlucky or outside the norm. Then one day about two weeks in, I started shaving with the battery at 50% and it abruptly died mid-shave. After that I noticed the battery would decrease normally (about 3-5% for each five minute shave), but once it hit around 50 or 60%, the battery would drop 1% every second until it hit zero. I thought this was fine - I have to charge the shaver every week, so what?The problem is, this "battery drop off" point kept creeping higher and higher over the past year and a half until recently, when the battery died as I started shaving at 92%. I had been recharging the shaver after every two shaves already, so I figured this was time to get a new shaver. If the new one follows the same pattern, I'll be reasonably satisfied if the battery gets me through two years. After reading about battery charging and battery life, the plan is to use the shaver until 60%ish battery, then charge up to 90%ish each time - might help, might not.So why buy the same shaver if the first one had such an unreliable battery? I haven't used any other electric head shavers out there, but I had been shaving my head with a safety razor for a few years before I tried the Pitbull. I can't say anything about the other shavers, but my skin is pretty sensitive, so I am hesitant to try new shavers - and the Pitbull is pretty good in this regard. The four bladed (I think it's called the Forte) attachment that comes with the shaver doesn't irritate my skin, and is fairly reliable (I only broke the first one by dropping it multiple times - my bad). I'd say that shaving against the grain with the shaver gets my hair very close to what a safety razor would get (also going against the grain). Obviously it's not quite AS short, but the difference is maybe 6 hours or so of hair growth for me. It's definitely closer than shaving with the grain with a safety razor, and shaving against the grain with a razor can cause irritation for me anyways.So the quality of the shave is fairly good, I only have to shave every 2 days to maintain a clean look. But the best advantage of the Pitbull is TIME. It only takes 5-7min to shave your head, rather than the 20min it would take me with a safety razor. I'd recommend using conditioner on your head when using this shaver, using shave soap and a brush will actually get the blades of the Pitbull coated with soap that doesn't easily come off, and the bristles of the brush will occasionally come off and get sucked into the shaver - which messes with the blades and is annoying to clean. Conditioner is easy to wash off, all you have to do is rinse with hot water, and the shave is smooooooth.TLDR: Buy to save time. Shaves pretty close to safety razor, if not 'baby bottom smooth'. Do a favor and use conditioner instead of all the other shaving products. Yeah, battery kind of sucks.