That's kind of awesome that we have siblings lol! I recently discovered a lady here in town has several horses from the same farm that Lyric came from.
It is humorous
. I have two from them now. Baron was what tipped the scales for getting my mare over a couple of others that made the short list, because she had his disposition. My filly is not out of him. She's got more of the Sport horse build like her sire. And she'll also have the height, since she's already 16.3 and will likely top out close to 17.2 before she's finished. The only problem I've had with my mare has started just in the last couple of months. I've never jumped her (no desire to), but she's got it in her head now that she like jumping (has to be the Saddlebred in her) and has taken to jumping a partitioning fence between two of the pastures, when she could easily go through the open gate a couple feet away. At least she's limiting herself to the 44" high divider and not trying the higher outer fence.
We've known George and Fredericka for quite a while. Started out with dogs from them. My first was an English Mastiff from them, but that was some time ago. I'm currently on my second replacement Mastiff from them. Looking forward to riding horses up to their place in a few years after I've finished with training and conditioning them for it. Will be my first 500+ mile ride.
A couple of other drawbacks I should have pointed out to the OP about Frisians.
Feathering and the long tails, while looking pretty, can also be a handicap. If you ride in an area that has burrs, etc....they'll be attracted to the feathering and tail like iron filings to a magnet. If I ride through the wrong field my crossbreed will come on with an extra 10 lbs matted on her feet and tail.
I've seen feathering become an issue with getting scatches. I've avoided it, but I keep a small bottle of teatree oil around for the times I find what feels like the start of scratches. Rub some on the spot for a day or two and it goes away without developing.
Frisians also take awhile to finish growing, so that might need to be taken into account depending on how much time they want to spend and how old a horse their looking at is.
I personally didn't really want the long tail and feathering, but I've avoided clipping them to keep some people like how it looks when she trotts happy. Will likely trim it anyway once I start using them for long distance riding, because I won't have the time to deal with cleaning a lot of burrs if they get some.
Again, FeatheredFeet has made a good point about being careful and making sure of what you're getting. As with dogs, you'll find people who feed on the popularity and don't breed responsibly. The example she gave plays out a lot with dogs and I'm sure there's more then enough cases of hte same with horses. Even with a breeder I know and trust I still go and check out the horse. The horse needs to be what you are looking for and only you can tell if it's what you want. And if you're not use to looking over a horse (i.e. What to look for), then take someone one with you who does know. A vet check is always in order too.
Bottom line is to make sure of what you're getting and that it's what you really want for the riding you plan to do. There are some great Frisians out there, but as with any breed of horse they are not all equal or the same.