Well as for the noise... AC's are louder so if there is every any question you can always say the AC is on. Also what I did when I lived in an apartment I kept a small alarm clock radio on all day just loud enough to cover the sound. The fans themselves are loud it is actually the sound of the air whooshing. You can make a muffler for that if you are truly concerned. For the smell there is many many way around that, scrubbers, odor removers, and odor eliminators. a scrubber IMO is the best way to remove and eliminate air. I linked you a 50.00 scrubber that will work for the space you are exhausting. That scrubber is a one time buy, all you need to do is refill the carbon after about 8-12 months. I have had mine for two years and refilled it only one time so far. I bought 12 lb of carbon from ebay for 15 bucks, and it will refill the scrubbber about 2 more times.
No matter how you see it growing is not cheap, but you can almost ALWAYS get back a lot more than you put in. 400.00 can get you a QP easily, and up here a QP of dank nugs will score you 1000.00. I do not sell but when I buy I pay 10/g, so my 1000.00 investment saved me 200.00 in the long run, I am still using all the same spplies so this grow I am expecting more than a QP and did not invest anything this time around. That means that if I sell then I would have a 100% profit from my first investment 2 grows ago. So yes it can start out expensive but nothing like having to buy good buds.
No matter how you see it growing is not cheap, but you can almost ALWAYS get back a lot more than you put in. 400.00 can get you a QP easily, and up here a QP of dank nugs will score you 1000.00. I do not sell but when I buy I pay 10/g, so my 1000.00 investment saved me 200.00 in the long run, I am still using all the same spplies so this grow I am expecting more than a QP and did not invest anything this time around. That means that if I sell then I would have a 100% profit from my first investment 2 grows ago. So yes it can start out expensive but nothing like having to buy good buds.