On another forum, I read where a poster posted many negative comments about a product, and was threatened with a defamation lawsuit by the manufacturer. I realized that, most of my posts here, regarded what I considered problems with my 2012 S40. So, that said, here comes the good stuff.
1. 4 years and +5,000 miles, only 2 small issues. The petcock and turn signals. The petcock was replaced with a Yamaha raptor and the turn signals was a connector under the seat that came apart. Easy fixes, NO other problems.
2. Great mileage, 60-65 mpg, and the low compression thumper will accept regular gas.
3. The quality build is top-notch. Other than periodic adjustments, everything stays where it belongs and is made to last.
4. The drive belt is.... tops. Hasn't yet needed adjusting and is so quiet.
5. The seat and riding position fit me perfectly. I'm 5'10", 170 lbs.
6. The handling is nimble and precise. I passed the endorsement test on a GZ250 and was impressed with the handling. The S40 is it's big brother.
7. The styling. Suzuki set out to create a simple, functional design and nailed it. IMO, it begs to be bobbed! Personally, I think it would look boss with a metalflake flame job and 4" over tubes. A mini Hopper Chopper!
8. Tons of torque. I could pull a trailer with it.
9. Outrageous braking. Smooth and effective. Saved my bacon more than once.
10. Easy to do maintenance and repairs or mods. And, she's been on the market long enough to have repair parts and accessories readily available.

So that's my Top 10 list, why it's still here and will be for the foreseeable future. Oh, did I mention this great, helpful Forum?

I would think that any negative comments on this forum that involve the petcock or cam chain tensioner could be easily backed up with enough documentation to support the negative comment(s).

And the brakes......they could be improved.  The back one locks up easily and the front one is about 60% of what it should be.  Someday you will ride/own a bike with good brakes and feel the difference.....a good front brake can be operated with 2 fingers.

I do like the bike a lot and agree the bike is easy to work on, the big single is a hoot, and I have fixed those other issues...including the brakes.  The Cafe' conversion and midset pegs has made the rear brake less touchy, and I have Shawn's big front brake on my bike.

I guess I have a different experience than some people. My rear brake works as it should, although, it's a little weak and could use some help. It doesn't lock up unless I make it. That becomes my fault, not the brake. The front brake also is a little weak but it does a decent job. On a scale of 1 to 10, I'd give the brakes a solid 5. Not great but useable.

The rest of the bike...I'm very happy with it. It does everything I want. I've had zero trouble out of it.

So if we say "X" is a garbage product, and it's true, it's legal. This bike has a long history of specific problems that have been addressed by the members here. These are facts!  

My front brake is marginal at best and tends to fade quickly. However, I have read that the original pads wear out pretty fast. My aftermarket ones don't. So, is the front brake more effective with OEM pads?