Hopefully others chime in. Those imperfections may be considered a factory second; you'll have to discuss it with where you purchased and see what they/VapeXhale may do for you. It shouldn't affect performance if you cannot feel them as you mentioned. Ouch on that broken piece hydratube. Vapor won't diffuse as well in the bottom chamber, but the overall utility of the hydratube should be similar. I'd consider using long needle-nose pliers or whatever you can to break up and remove that broken glass piece and ALL the little glass bits associated with it. Then clean the hydratube out completely, everywhere, so that there is zero loose glass and glass chips anywhere in the unit.