The Tiny Hawks are great indoor quads; they're pretty stable to fly, but I wasn't terribly impressed with the transmitter that comes in the bundle - it didn't feel all that smooth.
I personally like the NewBeeDrone Acrobees a little better, but that's me. Here's a list of pros and cons that I see for both:
NewBeeDrone Acrobee
Pros
Frsky or DSMX/Spektrum compatibility
Motors, props, and frame are interchangeable with Inductrix line from Horizon Hobbies; motors generally runs $20 or less for all 4 of them
Offers RTF kit with goggles, controller, 4 batteries, quad, and charger for $200
Runs 1S batteries, which are cheap; ~$30 will get you 8 of them
Cons
Brushed motors tend to wear out faster than brushless motors
Small, affected by anything more than a very light breeze
Emax TinyHawk
Pros
RTF kit available for $165, which includes goggles, controller, 1 battery, charger, and quad
Brushless motors
Cons
RTF kit only comes with 1 battery
Brushless motor replacements are $9-$12, depending on where you purchase them
Parts aren't as readily available from Local Hobby shops
Only available for FrSky transmitters
Small, gets blown around by anything more than a light breeze
They're both good setups, both good prices, and they both fly solid; it's really more a matter of preference and how hard you think you'll fly them. I myself lean towards the NewBeeDrone quads because they're SO stinkin' smooth at flight, right out of the box; they feel and perform like a full size quad right out of the box, whereas the TinyHawk felt like it took a bit of tuning to get it to fly in the same manner.
I think if you're a bit harder on your quads with flying, go with the NewBeeDrone ones; parts are easily replaceable and you can get parts at most local hobby shops. If it's just about buying cheap and you want the RTF, buy the Emax, but know that it's not just $165, because you'll want extra batteries to swap out - regardless of either quad, you're only going to get about 3 minutes of flight on each battery, and it'll take a minimum of 15-20 minutes to get them charged up.