Install ECC 6.0 after V5R4 upgrade

Hi, all

We are planning to upgrade our OS from V5R3 to V5R4 soon, then would like to install a new test system with ECC 6.0. Has anyone had similar process done recently? Is there any major issues we may encounter or need to watch out other than the latest APAR for all IBM PTF?

Any suggestions, advice or any valuable experience you can share would be really appreciated.

Teresa