Product review (3 stars): It is a 'ok' product, but a bit pricey
<a data-hook="product-link-linked" class="a-link-normal" href="/Venstar-Wireless-Thermostat-Kit/dp/B006R6BN02/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Venstar Wireless Thermostat Kit</a>
For the Ventstar wireless thermostat to work, you need to buy
at least one transmitter and one receiver,
so you are looking at $200 approx.

I have been using the Venstar thermostat for over 4 months now.
This review is based on my experience in the pass four months.
For the most part, the basic function works.
I would be much happier if improvements are made in the following areas:
1) The transmitter is too bulky. If the size can be reduced by 50%
  it would look much better.
2) For a $200 product, I expects a higher grade plastic casing.
  The current plastic casing is a bit too cheap looking for my taste.
3) The receiver some time missed the command sent from the
  transmitter. It will eventually catch up, but the delay is annoying.
  This seem to get worse if the I use a 'house code' higher than zero.
  (zero is the default 'house code')
  This is a big issue for me. If the link between the transmitter
  and receiver is more reliable, user experience will improve a lot.
4) It lacks the support for 'integrated air quality' system.
  If you have a air purifier installed with the furnace, you can not
  set up a separate time schedule just for the fan.
5) The user interface is a pain to program. This is mainly because
  transmitter has only 5 buttons on it. Each button has to serve
  multiple functions. I like the user interface of the Luxpro
  thermostat _much_ better. (Luxpro does not have a wireless model,
  however) This problem can be solved if Venstar is
  willing to add more buttons.