Samsung Galaxy S4 gets a quite stable version of test build Android 4.4.2 KitKat

It’s been a while since I last posted something, well I been away to Bali, Indonesia for a short holiday trip and had some minor problem of getting a stable WiFi connection at the place that i reside. Alright, many things happened while I was away, and one of the best news especially for Samsung Galaxy S4 users, the test build of KitKat based ROM was released at Sammobile which seems quite stable for daily usage based on most users opinions.
This KitKat ROM has a build number of I9505XXUFNA1 which means it is a build designed for the LTE version which runs on the Snapdragon 800 and is not possible to run on the octa-core version. To get this installed, it is pretty simple as this is an official test build release, your flash counter on your download mode would not increase and your warranty would not be void as well. Flashing an official ROM on Samsung devices are quite easy compared to Sony or HTC. How to do this? Get the phone into download mode(switch of your phone,hold home + volume down + power button simultaneously), download Odin and flash the 1GB downloaded ROM (register for a free account in order to download the ROM).
You should try this update for at least a short period to have a feel of how tasty the KitKat ROM could be for your Samsung Galaxy S4, you can always revert back to the previous ROM that you were in by flashing the specific firmware version based on the build number and region. Some noticeable changes on this ROM, is the camera shortcut on the lockscreen, exactly positioned like the stock KitKat ROM on the Nexus variants, a smoother performance, and much more. 
Also, one of the problem faced by the users who tried this test version is that getting stucked in the Gallery mode  and being unable to share photos directly from the Gallery itself,or very laggy Touchwiz UI at times. Some recommended fix for this problem is by navigating to the Settings > Open Device > Home Screen mode, choose Easy mode and by applying this, your problem should be fixed. 
How would you rate Samsung’s quick release of test builds for their flagship devices? Would you prefer it to be 100 percent perfect rather than them releasing such test builds which still ends up being a laggy version when it comes to overall rating especially the same under-performing TouchWiz?