I am not sure ANEST IWATA is genuine IWATA,...as far as i know genuine iwata is called IWATA MEDEA.
I have an iwata hp-c+ and a micron and 2 paasches bottom feed and several different sizes needles/nozzles for years and they are doing everything they were ment to do without any problems.
My compressor of choice is a SIL-AIR 30,..sillent like a refrigerator..so i can airbrush 24/7,plenty of tank-content and most important an even flow of air pressure.
No overheating the motor because of the large tank and almost no maintenance if you keep it dust free and check the oil level and clean the tank every now and then.
This set wasn't the cheapest of the cheapest but,....i can tell you i haven't had any problems with it for the 8 years i have been using it.
I went through many "cheap" airbrush/compressor sets and allways ended up with mediocre results airbrush wise and apparel mallfunctions.
After spending to much cash on the cheaper tools with so so results i decided it had enough of it and saved up to buy quallity stuff.
I never regretted this decission.
The +/-$700(the iwata micron and paashes not included) i invested has paid itself back in spades.
No more frustations about mallfunctions caused by overheating compressor or waiting for it to cool down,no more uneven airpressure,no more paint waist caused by ruining paintwork due to splatters/oildrops/airpressure drops/rises.
My advise is to invest in a sound compressor first thing,..any airbrush(paashe/badger/iwata/devillbis to name a few or any other known brand of the middle and higher price class will do it's job just fine(check for replacement needles/part availlability though)
If you love to airbrush,..and i know you will after using it a few times you won;t regret all that money invested in your tools.
If you are somewhat like me you probably start taking care of them a little better since this time it is a "valuable set"you worked your ass off for,so cleaning your airbrush and looking after your compressor will become a routine in no time.
You probably start to take airbrushing more seriously and start to learn a few tricks or more in no time
SO my advise is to pass on the "low end stuff"and take you time to ask yourself why you think you need an airbrush in the first place and if you do need one,..what do you want the airbrush to do for you.
Then go and investigate the model(s) you need for that specific job.
Check the internet for your and other peoples favourite airbrush art/artists/users and try not to restrict yourself to model building sites only.
Go find out which type and/or brand these people use or was used on a piece of art .
Go check these airbrushes out.
During this research you probably will learn many different uses for an airbrush ,tips and tricks,..so you are ahead of the game
: time well spent.
Also start comparing all the renomated brands,don't think about budget at all,looking is free right!? and in the meantime ,say a couple of months,..start saving as much money you can and just buy the tool you need that meets your purpose
Do invest in your hobby/art seriously.
I hope this helps.
Good luck