The manual (if you can call it that) says that the charging currents are 360 ma for AA, 150 ma for AAA, and 30 ma for 9v. And that the timer is 8 1/2 hours. So that gives you 3060 mAh for AA's, 1275 mAh for AAA, and 255 mAh for 9 volts.
Besides having capacity cut-offs that are higher than desirable for all but very high capacity cells, the CHCC's trickle charge rates are also overly aggressive, especially for low self-discharge cells:
CHCC Trickle Charge Rates: AA = 50mA | AAA = 25mAh | 9V = 5mA
Still, it does have independent charging channels, and it will certainly impart a full charge, so I would be comfortable utilizing it as both an intermittent and a travel charger.
As well, it doesn't appear to conduct an impedance check, so it could also be useful for charging and treating marginal cells which are rejected by smarter chargers.
I have an Energizer CHM-39 which I've kept specifically for this purpose. Fortunately, its primary charge rates are a bit more suitable for low self-discharge cells:
CHM39 Primary Charge Rates: AA = 170mA x 14 hours = 2380mAH | AAA = 80mA x 14 = 1120mAH | 9V = 23mA x 14 = 322mAh
Even better, it doesn't appear to trickle charge, so there's no concern with occasionally forgetting that it's in use.