Celcom Portawifi...review

I got this porta wifi in exchange to my celcom broadband last month..since i refuse to have dataplan for my phone coz i dont want to be too attached to my phone actually..ceewah..so my expectation was i could use them for my phone as well as my laptop (not really mine actually heeee). Why i choose celcom? Coz the only communication service provider that have coverage at my kampung in xx kedah hehe (hulu sgt ker).. I've no issue with the coverage, but the only problem is that the thing can get easily overheated when we connect it to usb port (laptop, pc), of which it will convert itself to idle mode, no connection. So we have to take it out from usb port, wait until it cool down and reconnect it again. No issue of overheating when we connect it using power socket. I plan to give this feedback to celcom customer service soon