Half-day trek in the pre Andes range

This review was for a guide (Gaston Lopez) sent by Hernan. This was the worst guiding I've experienced on any trip taken over the last 8 years on over a dozen trips around the world. Numerous issues that you would not expect from a guide who's been certified for 12+ years. The most significant being: suggested I could wear normal hiking boots on a 6016 meter mountain (Nevado San Francisco) when I've always worn doubles on 6000 and even on cold 5000 meter mountains. An inexperienced person could have had foot issues/frost bite as it was cold the day we summited. Not knowing the route on Ojos - he suggested we try for the summit at 13:30 after moving from Arenal to the higher camp, but couldn't provide an answer when I asked what the average time was for people to summit when leaving from the high camp. We eventually had to turn around from this summit attempt because he seriously misjudged the timing and lost the route during our ascent. After this failed attempt, he said we'd make another attempt the following morning and that it would take maybe 7 hours up and 5 hours down, meaning we'd need to leave by 8:00 at the absolute latest to make it back before dark. The next morning he was still sleeping at 7:00, and hadn't mentioned anything about departure time the night before, so I left before him and led myself up to the plateau before he caught up and we went the rest of the way together. By this point I had lost all confidence in his guiding ability, advice, and planning, so I made the decision to leave on my own for the summit because I knew he wasn't leaving me enough time by sleeping in. Other issues: every time this guide verbalized the itinerary, it was different (he was clearly very disorganized and lacked basic planning skills); this was the worst and cheapest food I've experienced on any trip. Example: after an 11-hour summit day, we had canned lentils, canned vegetables, rice, tuna, and tomatoes mixed together for dinner vs. other teams that ate grilled meat, stir fry, hamburgers, tacos, etc. There was also inadequate/low quality breakfast of cookies and cereal only, as opposed to other teams eating eggs, toast with jam & peanut butter, bread/chapati, etc.; of all the guided teams at Las Grutas, we didn't have paperwork for the car to get past the gendarmie post so we had to get a ride from someone else to Nevado (shows poor planning and logistics); pacing was not great and he was so far ahead of me most of the time that he had no idea what my pace was, not to mention this is a dangerous practice in terms of keeping an eye on your client; guide had no hand sanitizer and didn't wash hands when preparing food; guide incorrectly told me I was developing HAPE because of a cough I tend to get at altitude but my oxsat was 83% and resting heart rate was ~95 bpm at 5500 meters.