Recommend A/C Manifold Gauge Set

[Colt Hero]

Recommend A/C Manifold Gauge Set

Which A/C Manifold Gauge Set would you recommend for a non-mechanic?

Harbor Freight has a $40 set which claims to be accurate to within 2%. AutoZone has a set of apparently similar quality but cheaper-looking gauges (Quest) for $60, and O'Reilly's has a set by Interdynamics (good gauges, seemingly similar quality) for $90.

I've also located a few units by MasterCool that can run upwards of $160, but I don't know if they're really any better because I don't know what features really matter.

Will the Harbor Freight unit suffice, or will it be too inaccurate (or maybe even leak on me)?