After 10 years of Motorola phones and not a single mishap, I cracked the glass on my 3 month old G5.  Any opinions of the Ubreak-Ifix franchise shops ?  The cost to have them replace the glass and LCD is $270  I do not have the luxury of the controllable hot plate to soften the glue that the videos show, only a hot air gun.  Is it dumb to try this and risk screwing it up to save $100 ?