I like Morningstars. This panel could probably get by with the Morningstar SunGaurd-4. The SG-4 is rated for 4 amps, if the panel goes past 4 amps, which I doubt, you'll need to step up to A SunSaver-6 (6 amp).
The SG-4 and the SS-6 work the same, mostly...
Both are temp compensated, series controlers, and true PWM.
The SG-4 has a peak V of 14.1v good for sealed, but work well for flooded also.
The SS-6 is adjustable to 14.1(sealed) or 14.4v(flooded), and had a green LED indicating daytime.
Be careful not to short the panel wires while the controller is connected, other than that they seem idiot proof (tolerate reverse connections, etc.).
SG-4's run around $30, SS-6's maybe $50. Readily available.
A SS-6, SS-10 (amps), or SS-20 may be better to allow for adding more panel at a later date. The SS-x line are available with a LVD (low voltage disconnect) for suppling current to a load. Load amps can't go past 6, 10, 20 respectivly.
I don't think most people would see any differance in the day to day use between the 2. I've been puting in 50w panels with SG-4's for several years with very good results, 98% with flooded batteries. Very reliable.
G-