It looks like a good deal. I have been tempted several times to get one, just to check it out.
2 other options are:
A used TAU-200. They come up for sale periodically. Check out
http://www.targettalk.com. If you get it from a club that is upgrading, you might even get a diopter sight. While the trigger on the TAU isn't as "good" as the expensive rifles, it is decent for the price.
A used Daisy/Avanti 853 or a new Daisy 953. You WILL want to do the trigger mods, as the stock trigger is LOUSEY. IMHO the cheaper 953 has a better target stock (shape and weight) than the more expensive 853. But it has a shorter 12" LoP than the 853 stock. You have to use spacers under the butt pad to lengthen the LoP. But the 853 has a Walther barrel. The 853s pop up on the used market as well, and for reasonable prices. Check FATMAN's posting for info on the sights. The 953 does not come with diopter sights, so you have to buy them separate.
For the AR2078 and the TAU-200, if you shoot a lot, you will want to do bulk filling of the co2.