Yes, that's the one! It was on sale for $110 at that time and I used 20% off coupon on it. HF is pretty good on returns if you did not like it (highly unlikely!)
Download the owner's manual of this and the one from Amazon. I suspect you will find them identical. I do not know which name brand from Amazon you were looking at but if it is Innova or similar US brand name, I am not sure you are getting the graphing capability. You might get the colored LED for the I/M status. The Centech does NOT have colored LED but it DOES give you I/M status, Mode $6 results,(limited) two way tests and live data with graphs. Few years ago, you would have had to pay four figures to get that functionality in a scanner. ( Some people still do :-)
If you get the Centech, start scouting the web to see if you can obtain Mode $6 definitions for the vehicle you are interested. Some have it in the service manual while others (Ford?) make it available freely over the web. For some, you will have to find an underground source. I wish it was standardized and freely available :-( You will also find some of the great presentations on Mode $6. Motor magazine have ton of articles on these topics freely available on their site. Only visit that site if you have few hours to kill. You *will* get hooked on it.
Keep us posted. I consider it is my solemn duty to push OBD scanners to all the unsuspecting BITOG'rs :-)
P.S. I tried to find a VAG-COM handheld unit from Centech/Autel which will do the plotting etc but came up empty. At least that was my impression from quick reading but I did not go looking for the owners manual for that unit. If you determine that VAG-COM unit does plotting, mode $6, I/M status, limited two-way tests, then that would be the best for you even at $160.