I assume you are talking about mrna vaccine so here is the opinion.

Mrna vaccine are provably superior that annetuated vaccines. This is proven both by studies (1) and epidemiologic observation.

The problem is :

1. None of the early vaccines (let it be pfizer, moderna or early vaccine provide sustainable immunity (with nearly 84% inefficiency) after 6 months.(2)

2. The so called efficacy goes down with new generation of covid-19 variant (3)

3. Natural infection provides better immunity than vaccination (4)

4. There have been reports of post vaccination myocarditis, although the myocarditis incidence was found to be short term (5)

That is my unbiased review of this.

Tldr to me, the vaccine was released prematurely. However, covid was more aggressive that it changes the way epidemics have been managed worldwide.