Both Pyg track and Miners track starts from Pen-y-Pass (the car park fills up by 8am so take the Sherpa bus service instead). We decided to ascend via the Pyg track and descend via the Miners' track. The weather was pretty dull that day (no where near the BBQ summer that the Met Office predicted), and we only saw the summit less than a hundred yards from it. The Pyg track route itself is easy, and is well marked. Just be careful not to accidentally skirt left onto the Crib Goch arête at the Bwlch y Moch junction if you aren't planning to. Including the return trip via the easier Miners' track, the total height gain of around 3370 feet (at least according to my log) and involves about 7.8 miles of walking.
The summit was crawling with human traffic, and as one fellow walker commented - more crowded than Piccaddilly Circus (which is true! - even the Sherpa S1 bus we took from Llanberis is more packed than a rush hour Tube carriage). Disappointed that we couldn't see anything once we were up there, but this is great excuse to climb back up again the next time we are in this area, hopefully eventually bagging all the other routes (including the Snowdon ranger, Watkin path and Snowdon horseshoe).
Maps: Ordnance Survey Explorer OL7, Landranger 115