I've seen several bigger Meshtastic networks in Europe that suffer from a dramatic unreliability.
Everything beyond 1 Hop is often unusable. The public chat room only sees fragments of discussions. This causes big frustration within the community.
MT clients are just too chatty. That most Roles can act as a (delayed) Router was IMHO a bad design decision.
Also that they blocked the term "Meshcore" on their Reddit Sub leaves a bad taste. Both projects share similar problems - they should cooperate instead of fight each other.