While Ukraine unquestionably put up a hell of a fight, the fact that the numerically superior army with the better and more numerical equipment, backed by the multiple times bigger and richer country failed is a failure. Especially when you consider that Ukraine doesn't have a navy and barely had an air force and anti-air, yet Russia failed at establishing air or naval control, let alone dominance.
> Russia's chances against the Baltics are pretty good, I would say 1 in 3.
Russia has no chance of having a war against the Baltics only. Any aggression against them will be met with a swift reaction from Poland, which has a better equipped army than Ukraine. If Ukraine can destroy the best Russian units and hold to a stalemate the majority of the remainder for years, Poland will wipe the floor with the war criminals.