Be prepared for stuck zippers
I bought this pack when my Eastpak convertible--one of the originals--finally needed replacing. I used that pack for worldwide travel. I can already see the Boda 70 won't live up to the Eastpak.
On the plus side, the Boda 70 is huge. The longest trip I used it for was five days, and even then I didn't fill it. The pack cinches down nicely though, with sturdy clip buckles. Another nice feature is that the harness is adjustable, so you can fit it for real comfort. There's a mesh pocket in the lid, too, that comes in handy for dirty/wet clothes, or for things that you want to grab fast. It's main out of some tough material, too. I'm never reluctant to just heave it up in luggage compartment of a bus, or drop it on the ground in the subway. It also cleans easily with a damp cloth.
The daypack is pretty small though, barely big for a day in the city. Once you throw a jacket and maybe an small umbrella in there, you're out of room. The Eastpak was expandable, but the EMS daypack is as small as the Eastpak at it's smallest size. The main pocket of the daypack is pretty narrow, too, so have fun cramming a sandwich in there; it will come out squashed. It's basically big enough for a laptop in a padded cover, which is about all I put in there when I'm not traveling. Also, the daypack connects to the main pack with hooks that clip onto rubber loops. In time, that rubber will crack and break, and unlike buckles that you can replace,, once these break, the daypack will never go on the main pack again--a bummer when you're running through an airport or chasing a train.
The real pain is the zipper on the cover that covers the main harness. EMS definitely cut some corners, probably to save a little cost, but it was a big mistake. I don't think I've ever used it without it sticking big time, and it's always when you're coving up the straps right before you check the bag at the airport so the baggage handling equipment won't snag the harness. Also, it's a problem when you pick it up at baggage claim because you can never uncover the straps. Huge pain, and for that reason, I wouldn't recommend this pack. You're just going to end up with a lot of frustration during times when you just want things to work. I serioulsy doubt if EMS will post this on their site.