For mobile use, the device is too bulky, here are pure plug converters, eg Inateck charging plug clearly more effective variant. Conversely, the horizontal version incl. Power / power cable is a simple desktop variant.
Technical features, there is no. Loaded - as might be expected - up to four devices simultaneously, while the IPOW proves hoped for omnivores, ie it loads successfully across the complete device peripherals. Gimmicks and gadgets of all kinds are not installed, apart from a small & insignificant LED once.
The distance between the individual cargo ports is designed generously, tangling cables and wires rather excluded. On noise (humming, buzzing, humming) dispensed with the whole construction, the heat generation but above average, although not yet worrying.
Conclusion: A classic USB mass product.
Addendum: This product was me free of charge by the manufacturer. This fact does not affect my rating, which is unaffected, unbiased and objective.