does these battery stats are reasonable for rMBP? (max charge 98% after 25 full cycles)
Definitely. I had a MacBook Pro for 5 years, and by the end, the battery health was 73%. Yours looks to be 98% after 14 months. Battery degradation is just a fact of owning a laptop and not something to be terribly worried about.

EDIT: Apple support website says this:

Occasionally, the battery may not show a full charge (100%) in OS X, even after the power adapter has been connected for an extended period of time. The battery may appear to stop charging between 93 percent and 99 percent. This behavior is normal and will help to prolong the overall life of the battery.