TI 2015 is deem buggy !........ My experience as inside..

I am using Win81 and TI 2014 before I uninstall 2014 and upgrade to 2015.

Experiencing the following

1) TI2015 occasionally crash out with exit in Win81
2) Using the created boot disk .... after bootup and exit from it ... it hang (mind you it is not even in Win81 environment)
3) Restore in boot disk environment ... half way it fail !.... and second try passed....(mind you it is not even in Win81 environment)
4) After create a Image in Win81 , sometime it will no longer allow me to backup again unless I exit and start the apps again.

is T1 2015 still trustworthy to use as a main backup software?