Bought this new in Fall of '24, played it maybe once a week or so for a little over a year. Never gigged out, it's still in like new shape. Workhorse of an amp.

From Friedman:

The Little Sister is a 20-watt, EL84 powered, single channel head or 1x12” combo based on it’s 40-watt predecessor, but still delivers the signature British tone Friedman has become known for. The amp features one channel that can give you everything from gorgeous sparkling cleans to a glorious vintage crunch. Extremely versatile, the Little Sister can produce many styles of music from blues to rock and country by just adjusting the gain and master, S-Switch (gain structure) and B Switch (Bright/Tight).

Specifications 

• 20-watt cathode biased amp
• Incredibly versatile single channel all-tube head or 1x12” Combo·
• 2 x EL84 power tubes
• 3 x 12AX7 preamp tubes
• Master volume and gain controls·
• Full EQ consisting of Bass, Middle, Treble
• S-Switch (Gain Structure
• B-Switch (Bright/Tight)
• Ultra-transparent series FX loop
• 4, 8 and 16 ohm jacks
• Celestion 16 Ohm 12” G12M-65 Creamback speaker (Combo)
• Custom made transformers
• Assembled in Los Angeles, CA
• Limited Lifetime Warranty

Dimensions

• 8.5"" (D) x 18"" (W) x 8.25 (H)

Weight:

• 22 lbs.