Its a nice place. Living cost is low - the only thing pricey is gas price. But many people here ride mopeds and bicycles so don't get into gas guzzling vehicles.
Don't stay too long after 11 pm at nights and you should be good. Whatever you do, don't talk about politics with local people. Also, stay off the area where the US marine has a base - that place is rampant with prostitution and thugs.
Are you moving with your family? Government school are not that good, but few private schools are great.
You will have a good time in Guam as long as you heed to my suggestions. Source: I have no clue about Guam. Not even sure where Guam even is. Friday अलि स्लो छ. तात्तो न छारो Guam को कुरा गर्नेलाई बढीजान्नेको झ्वाम !!