I want to give a realistic picture of the overnight long-haul buses in Central America, specifically the 'chicken bus' vs shuttle bus debate.

Chicken buses (repurposed US school buses, often painted elaborately) are the cheapest way to move between cities. A 3-hour journey costs $2-4. They stop constantly, are usually standing-room only past the first few stops, play loud music, and have no schedule beyond 'roughly when they feel like leaving.' They're an experience and a genuinely good way to see how locals travel.

Shuttle buses (minivans operating on tourist routes) cost $10-30 for the same journey. They run on schedule, pick you up from your hostel, drop you at your destination, and stop at tourist-specific points like Antigua-Flores-Semuc Champey.

For budget travelers the honest advice: use chicken buses for shorter, well-traveled daytime routes (2-3 hours max). Use shuttles for overnight journeys, routes requiring transfers, or anything you're doing after dark. The safety difference after dark is real enough to justify the extra cost.

The Antigua to Semuc Champey shuttle for example: a chicken bus route would require 3 or 4 changes, take 8 hours, and save you maybe $12 over the $20 shuttle. For most travelers that calculation doesn't work.