It is great until you power cycle machine that was behaving strange only to find out that it was due to HDD that was starting to fail and it does not boot anymore.
In a production environment, I prefer frequent power cycling. You don't want to be in a situation where a dev/ops is afraid to power cycle a server with very high uptime. If there turns out to be a problem anywhere, better to find it sooner than later where recovery is more likely and in the worst case fail-over or restore from a backup.
