I garden for a living currently andf have been for the past 2.5 years….doing a computer science degree too so not sure I’d classify as a pro gardener ‘cos I don’t do it all day, but I have some City & Guilds tickets so am kind of qualified.
Anyway I have been using a Stihl km131r kombi unit. Very heavy, has vibes but is a real beast. Definitely not only for domestic use which is fine for me as I do heavier duty work too. But If I were to buy a domestic machine then I’d seriously consider the Makita DUX60. The batteries will work with all the other Makita tools. My problem is the drive shaft is incompatible with the square tipped drive shaft of the Stihl unit so my Stihl attachments won’t fit the Makita unit. Stihl do a battery unit but it’s not completely wire free as it needs attaching to a backpack battery.
Ego get good reviews although how many of those are by people who sell the Ego products I couldn’t say. Not a brand I’d go for personally.
Echo are good quality and they do both a battery and a petrol split shaft unit. I’d definitley consider their kit.
Shindaiwa are like Echo…same company but slight variations on their kit. Still very good quality.
Ryobi are like a cheap Stihl so it might be worth looking at their expand-it range as I’m sure they’d be fine for domestic duties. Their attachments are meant to be compatible with Stihls too. Stihl are better quality though.
Honda’s versa tool is four stroke which is unusual. Good quality, heavier than two stroke and again probably ott for domestic use.
Husqvarna do good battery kit so well worth a look at.
I’d say go Makita. They’ve been in the battery game longer than most. Pricey but shouldn’t be a throw away item and yet still better value than a lot of the above brands.