I've been using Iron for a number of years and occasionally lurking here, but thought I would finally sign up and contribute. The latest version is working for me, but with some stability problems with Flash content (see below). Most of this is at the mercy of the Chromium source, and you can see the complaints over in the development bug reports. It's an ugly mess out there, HTML-5, Blink vs. WebKit, etc., and everyone wishes that Flash would just go away - except for those patented MPEG4 codecs.
One good thing is that the scroll buttons are back, after having been taken away in the last few releases.
1. Flash Player Problems
Some may find that an earlier supported version of Adobe Flash Player might be more stable. Adobe currently supports 22.214.171.124 (4/28/2014) and 11.7.700.279 (4/28/2014).
If you are going to try the 11.7 version make sure you uninstall the later Flash Player with the uninstaller for that version (found in the zip archive), otherwise when you try to install the earlier version it will fail with a message stating that there is a later version available.http://helpx.adobe.com/flash-player/kb/ ... sions.html
2. MMX, SSE, SSE2 Instructions
The latest Iron-version 34.0.1850.0 does indeed refuse to run on machines that do not have the SSE2 instructions. It will install, but refuses to run necessitating dropping back a version or so. You may have to delete your profiles and allow Iron to recreate them in order to get the earlier version to work.
SSE2 was included in Pentium M processors (a Pentium III CPU grafted to a Pentium 4 fsb), and all P4's. P-III's included SSE, and P-II's included MMX. All previous versions of Iron that I've used would run on a Pentium II.
3. Uninstalling Iron - Can only be done on a 64-bit Machine
Not that anyone would want to, but that's the message I got when I tried to uninstall Iron 34.0.1850.0 on a 32-bit (WinXP) machine. The uninstaller seems to only run on a 64-bit machine.
SRWare has the right idea, and the right combination of built-in features like the simple adblock that gets the job done quickly without burdensome addons. The Chromium project just needs to get its act together.