I've played Fey Wanderer a bit, it's very flavorful but to get full use out of its features you need high stats almost across the board. If you have high WIS and decent CHA on top then you can end up with insanely high bonuses (even more if you use your Canny expertise on Persuasion)
Dreadful strikes works on multiple targets a turn if they're different, usually you want to focus fire but it'll still always come up if you kill someone and then switch targets with your next attack. Expanded spell lists are always lovely given how few known spells rangers get.
The level 3 Feywild gifts are a great flavor option and I wish more classes had something like them. More skill proficiencies is always nice.
Beguiling Twist can become hilarious if you have a party that is consistently forcing fear effects which isn't difficult. Rangers don't often have a good use of their Reaction especially if they're shooting enemies with a bow and archery fighting style so there's little opportunity cost to attempting this.
Keep in mind it also works when any allies make a save against charm or fear as well. Very fun and flavorful.
The level 11 feature allows concentration-free,no component casting of Summon Fey in place of the other "multiattack" options other ranger subclasses give and I have mixed feelings about it.
If you have a round or two to prepare summoning multiple summoned fey to assist in a fight can be quite strong, but at the same time Ranger spellcasting is so fucking delayed that at 11th level you only have three third level slots to play around with plus the free casting.
Still very thematic to just snap your fingers and have soldiers jump to your defense, but it's annoying to wait til level 11 to do it when other classes get summon fey at level 5