Absolutely fantastic trip - Excellent, professional guides. Having just completed a 2 day expedition to the summit of Mulhacén (at just under 3500m, the highest mountain on Spain's mainland) I would thoroughly recommend Richard and Spanish Highs for any kind of adventure, particularly exploring the vast Sierra Nevada.
We reached the summit on the second day, but on the way also summitted Alacazaba, bivvy'ed next to a lake, saw the Milky Way + a couple of satellites whizzing around, and traversed the treacherous north face of Mulhacén, all experiences I won't forget.
Excellent trip, already planned the next one.