Yes we have 2 pairs of these boots for my OH horse. he only rides infrequently and we find these boots really good. they are ok to fit and remove. we havent lost one yet whilst out hacking. it can be tricky getting the right size at first, i suggest you talk to the shop, order 2 sizes and send one back.
My tack shop used to sell the singly, so I bought one for hacking if we'd lost a shoe. We only have front shoes, so don't need to worry about backs. I've used it once for this reason. Worked fine.
I use them on both of my horses, they take seconds to put on and i do quite long hacks in them over various terrain. Equestrian clearance do them for about £70 i think.