There is no reason for you to change.. In all respects Z2 is far better than G3.
It has been almost 10-12 days on Version 1.5 and I had not a single freeze or restart. I have xposed installed some 3-4 modules and no problems so far.
Hats off to the best Developer niaboc79
Are there any known bugs in this ROM?
None replied any fix 4 GPS??
The following settings worked for me-
(do keep note of default values, in case you wish to revert back to your original settings)
From your phone dialer type *#*#1472365#*#* on eclair or *#*#3214789650#*#*
As always version 7 working beautifully and it is very smooth compared to previous versions. Looking incredible with MIUI theme.