TO be clear there are two products called Powerport II, the Powerport II 2 and the Powerport II with Power Delivery.
So we're meaning this one:
It is a general purpose charger can do most things well. It has "IQ2" which is a reverse-engineer of Qualcomm Quick Charger, and USB PD, both ports will default with a non/QC/PD to 10W which for example a typical iphone would get but you'd be ready for a couple of interactions of future phone replacements with the headroom of 30W PD which may be useful in a future laptop or tablet as PD is likely the concensus future for all products.
IT is only a fraction more $ than the two mentioned by OP and if you're not in a hurry it does come down to about $24 in the odd sale.