T-Mobile fastest spectrum headlines can confuse customers: they expect “fastest 5G” everywhere, all the time. Dealers should translate it into real life: some spectrum is used in specific areas or conditions, so performance depends on location, congestion, and device support. Run a 5G Reality Check (where they use service, device model, peak-time slowdowns, and indoor coverage). Then sell consistency: the right plan tier, a device upgrade when needed, and a home Wi‑Fi/backup