What sort of work are you doing? For car work, it should be a good choice. For debugging digital electronics, or anything high speed, they may be a bit lacking. Do you need the durability and portability? I have used two different fluke scopes in this series, I think they were a bit older, and I remember not being horribly impressed. Iirc, the displays were pretty dim, which I guess is done to save battery power. The ones I used were only 2 channels, I don't know if they make 4 channel versions.
If you are trying to debug electronics at a low level, I would look at Tek tds2000 series benchtop unit and the Chinese knockoffs of it. The tds2000 series comes in a number of configurations and speeds, ranging from $1000 to $2200 or so new, and I'm sure much less used. If you need more than this, you probably have a good idea of what you need, and the costs associated.