Have any one used 'Go launcher', is it safe?

Its a very good option if you didn't like your current stock home screen.

But bear in mind. For it to work smoothly,from experience understood that it is recommended that you have at least a 1GHz processor and 512 MB RAM.

Its easy to uninstall it. Just goto:-

Setting>Applications. You will find the list of app's on your phone in that menu. On clicking on it you can see an 'Uninstall' button.

If you're unhappy with the skin the manufacturer slapped on your brand-new Android phone, GO Launcher EX provides a good alternative. Indeed, the launcher embodies the open-source spirit of Android, with a large array of customizable options, themes, and unique widgets and plugins. It's just a shame that the free version of the launcher is plagued by popup ads, and that so many extra features require you to pay for them. Still, it's hard to turn down such an innovative and attractive Android launcher -- especially when it's free.

GO launcher 5.0:

Pros

Lots of features available, from transitions to the way your homescreen works.

Great for customizing the look of your Android device – be it tablet or smartphone – with thousands of themes available, and compatible with pretty much every icon pack out there.

Easy enough to set up and get to grips with, without having to go through a tutorial or anything like that.

Go Launcher EX is a speedy app with features that change how your phone or tablet works to make things even faster.

Cons

Suggested apps and widgets on first launch can feel a little pushy.

Locksreen replacement could be better explained for those new to Android or not too tech-savvy.