I have been looking for the best way to cool my i5-4590S in the tiny Minibox M350 case. I have tried the Silverstone AR05 and the Xigmatek Praeton LD964.
Recently, on a personal trip to Taiwan, I picked up 2 low profile CPU coolers: Id-Cooling IS-VC45 and the Jonsbo HP-400 Zone. I actually got the latter by mistake, since I read that it was 30mm tall while it was actually 36mm tall.
I almost didn't test the Jonsbo at all, since to me it was a no-name brand that I didn't even intend to get. Turns out the Jonsbo performed the best! It's the only cooler that doesn't exceed 85 deg in my super airflow-constricted case when I run Prime95. This is amazing because it's the smallest AND the cheapest cooler ($15 USD, really?). Here is the ranking of these 4 coolers in terms of performance:
1) Jonsbo HP-400 Zone - 36mm tall, rated for 110w TDP.
2) Silverstone AR05 - 37mm tall, rated for 65w TDP.
3) Id-Cooling IS-VC45 - 45mm tall, rated for 130w TDP.
4) Xigmatek Praeton LD964 - 45mm tall, rated for 115 TDP.
What I also found was that it didn't really matter how good the fans on the coolers are (changes the load temperature only by a few degrees). The heatsinks are the main differentiators. What I plan to do is get the quietest 92mmx25mm case fan I can find (it'll just barely fit in my case since the Jonsbo is so short) that still has fairly good air pressure and swap out the Jonsbo's loud fans.
Unfortunately, you can't buy the Jonsbo HP-400 Zone at all in the US. You can't even find it on Ebay... 
