If you're looking for top radio performance, not necessarily the fastest speed, get the Pro models, older gen / second hand if needed, especially if you have suboptimal physical conditions. E.g. concrete walls, metal, etc. I had AC Lite, AC LR and AC Pro in use at some point. All of them were very good but the Pro had the best overall radio performance. If you're in a wooden house with drywall partitions, probably all would do well enough.