We bought the Doro WT87 because of the advertsed longer range. Our existing walkie talkies (Oregon Scientific TP-329) do not work well with the hilly and wooded terrain around our house.
The Doro does have a much better range and is usable for what we need, i.e. to give to the kids so they can explore the countryside but still be in touch. Don't expect miracles, but performance was noticeably better. Other than that they have all the usual features and are small and lightweight.
A nice feature is the ability to lock all the menu controls, to make sure kids fingers/curiosity do not change channel part waythrough their adventure.
The 5th star is reserved for any walkie talkie that has an ever better range.

Very pleased with this product. Range reasonable in conditions I used them and great way of keeping in touch on holiday.

These radios are tiny and have a high quality exterior finish. I tested them around a hillside and down a major A road and the range was easily 2 miles. Batery life also seems good, standby around 50 hours in my test (admittedly with little use).

Good points Seem to be better build quality than some Oregon units we have, and better feature design, e.g. the separate ring button. With the Oregon units our kids are constantly inadvertently initiating a ring-tone.

Bad points I think the quoted 10km range is highly optimistic.

Other thoughts

Overall we're pretty pleased with the units.

Good points Nice and small, can lock keypad, decent talk time and standby, seem quite tough.

Bad points Not sure about that long range capability quoted, though still to test on open land. Paint comes off buttons if treated rough. Send receive button got harder to keep down during use, - faulty??

Other thoughts

Proved real handy when driving to/through France with another car in convoy, gave good comms for all the kids toilet stops! Range nowhere near 6k in motion though, particularly if out of sight. Still, worked well, and happy with purchase.