I'm not in the market for a programmable power supply, but based on this review I would probably favor this unit instead of the one I currently use sometimes at work (a similarly priced BK Precision unit). While the numerical entry is a bit unusual (I'd prefer a standard 10-key layout, like a calculator), I think Rigol is just trying to be a little different or try new things. Sometimes such ideas improve upon the status quo, and sometimes they don't.
On the subject of Dave being unbiased, which has now thoroughly been beaten to death (sorry), I wanted to add my two cents because I happen to have had a very relevant experience recently which I think may be of interest to share here.
A few months ago, I started needing to use digital storage oscilloscopes at work. My experience to that point was only with analog scopes. I did some research, and found Dave's reviews of various scopes (Agilent, Rigol, etc) as well as numerous other sources. I kept Dave's generally favorable and enthusiastic videos regarding Rigol 1052 and 2000 series in the back of my mind. A few weeks ago, I decided it was time to add a DSO to my home lab, and I started looking seriously to purchase. I demoed/tested similarly priced BK Precision, Tektronix, and Rigol models. Finally I decided on the Rigol DS-2102, based on my personal demo of it as well as the qualities revealed by Dave (and others) in online reviews. I personally felt that Dave had provided me with the most useful information and felt that he was responsible to a large degree for my knowledge of Rigol as a manufacturer, and my decision to even demo their unit.
I asked Dave directly if there was a way I could purchase the unit through his site or network in such a way he would receive commission. He replied:
I'm afraid not. Thanks for thinking of me though.
I arranged with my local dealer to purchase the scope, who recommended I work with Rigol US directly. While making the purchase, I asked the Rigol sales rep, Steve Barfield, if I could contribute something to Dave because I felt he informed my decision and deserved credit. I received an email reply from Chris Armstrong at Rigol, whom I don't think would object to my quoting part of here:
...he actually resists direct payments in order to keep his objectivity, but he does get ad revenue from his website.
It's true that Rigol's agency puts ads on Dave's site, but I don't think that causes or is due to any bias. If you recall, Dave was not afraid to show the 1052 to 1101 bandwidth hack. (Rigol US even has a link to that video on the product page!) In "DS2000 Playing Around" he wasn't afraid to throw out a few comments about weird firmware issues. I believe Rigol is a smart company. They have (so far to my knowledge) admitted mistakes, issued fixes on a timely basis, and probably values Dave's objectivity as much as we, his audience, do.
If their products sucked, and Dave called them out on it, they probably would not advertise on his site. That's just business.
I remain confident that if Dave opened up a Rigol product that reeked of oversight, bad design, or dangerous flaws, he'd have a field day showing them in all their glory and ask the manufacturer to respond.