I'm not sure if Russia's rail meets your criteria of proper service, but it has both passenger and freight transport in abundance, and I haven't heard of proble

I'm not sure if Russia's rail meets your criteria of proper service, but it has both passenger and freight transport in abundance, and I haven't heard of problems with that. Both long-distance and commuter passenger services are used extensively. However, freight service is mostly used for industrial materials while finished goods are mostly delivered by trucks (afaik), so that might be the difference.