I really like Trumpeter's 1/32 aircraft line as they're making kits that no one else is doing in that scale.
In my experience the fit and engineering can be a challenge at times but nothing that can't be overcome without a little effort. Their MiG-3 was the best fitting kit I've ever worked on even though the details were a little lacking and in places, just plain primitive.
They truly are hit or miss depending on the age of the kit but they are my preferred source of modern-era Russian jets. If they don't make what I'm looking for, only then do I look to Tamiya or another manufacturer.
Trumpeter's decals beat Tamiya's everyday, all day and in their newer releases they are including some very nice full-color paint profiles for both the aircraft and the weapons. Speaking of weapons.. if you get one of their new Russian jets then you'll have more ordnance sprues than you can ever hope to use. In fact, fully half the box will be ordnance sprues.
The only real fault I can place on trumpeter is that their cockpits are usually very weak in detail and are oftentimes better replaced with a resin set if available.