I've got them fitted to my vehicle ..my thoughts....my Land Rover has a layers approach with security ..I got these last year my vehicle is an older one personally if it was newer I would not have fitted them.
The locks are ok and work well but need regular lubricant as they are open to the elements .this is mainly the pax side as I don't remove it all the time with just me in the vehicle ..clearly sat still it's fine.
The lock works well and I managed to get a good close fit .
The powder coating I found to be a little week second rate ..the inside is not coated with anything and open to rusting I coated mine with wax oil inside which has done the job.
Apart from that they do the job..and adds to my layers .yes as with all security you can do stuff to thwart it but angle grinders and taking door off all take time which the nasty Land Rover stealing man doesn't like ..
So for an older veh. It works for me.
Fitting was fine ..I marked drilled and fitted without a problem used mastic behind the bar when fitting to help seal agains t water ingress in the bolt holes which has worked well .
Also handy to stand on for the roof rack.
Hope this helps
Terry