Its a fun game to play. Visually, its nice. The guns look interesting, the sounds are excellent, movement wise it feels like a slightly toned down BO3 in that the sprint speed is slighly slower IMO, and its a little sluggish to boost jump but not to say its hard to do it. Saying that IW is more boots on the ground is not really accurate. Sure you cant really do a lot of boost jumping in closed off maps like Frontier, but in maps like Frost and Throwback, there is A LOT of boost jumping and wall running. That said, I quite like the maps which arent the 3-lane design, as it makes things a bit more unpredictable. TTK is ok, and the specialists have some new interesting abilities.
Negatives, there seems to be some lag and host migrations, which was an issue in BO3. Matchmaking is horrendous at the moment, and personally for me, I can't get into matches other than TDM. All in all, it feels very similar to BO3.