Multi day pack - some guidance

So far I've only done day trips or overnight tramps, but after joining the local tramping club I am looking for a high quality multi day tramping pack. Currently I've got a cheap 75 liter pack from TradeMe that does the job, but is not comfortable at all. I've been Googling for a while now, but am still not sure what the best pack would be. Some requirements I have: - I want to buy local, not via e.g. Amazon - It has to be comfortable - It should have enough space for trips up to 4 nights - I won't be doing mountaineering, just summer tramping trips. - No separate day pack required. - Budget $200-400 So, I think a 60-70L pack should be good. I currently have a MacPac day pack and really like the brand, but I have read some bad reviews about them. I do like their Cascade and Torlesse Packs; I guess the Cascade is better quality because of the AzTec. Otherwise, I like the Osprey packs in general but they are slightly more expensive. E.g. the Aether 65L seems a good option. Or should I go for a Deuter, e.g. the Deuter Aircontact 55+10L seems a good option. I don't hear good stories about Kathmandu or Torpedo7 packs so I guess it's safe to assume I should not go for these? They are much cheaper. Some guidance would be appreciated as I want to buy a pack that will last for years and will make my tramps enjoyable.