Ok this is the final result with consistency:

.searchandfilter[data-sf-form-id="2545"] > ul > li {
	display:inline-block !important;
}

.searchandfilter[data-sf-form-id="2545"] li.sf-field-search {
  width: 40%;
  padding-right:10px !important;
}

.searchandfilter[data-sf-form-id="2545"] li.sf-field-tag {
  width: 40%;
  padding-right:10px !important;
}

/* format tag fields for consistency */
.searchandfilter[data-sf-form-id="2545"] .chosen-container-multi .chosen-choices {
    display: inline-block;
    height: 2.65em !important;
    margin-bottom: 0px;
    border: 1px solid #ddd;
    padding: 0 0.65em;
    font-size: 13px;
    line-height: normal;
    color: #555;
    background-color: #fff;
    border-radius: 4px;
    box-shadow: inset 0 1px 1px rgba(0,0,0,0.075);
} 

.searchandfilter[data-sf-form-id="2545"] .chosen-container.chosen-container-multi {
    width: 100% !important;
      margin-top: -5px !important;
}

.searchandfilter[data-sf-form-id="2545"] input.default {
border-color: rgba(0,0,0,0.3);
    outline: 0;
    outline: thin dotted \9;
    box-shadow: inset 0 1px 1px rgba(0,0,0,0.075),0 0 8px rgba(0,0,0,0.2);
  -webkit-transition: border linear 0.2s,box-shadow linear 0.2s;
    transition: border linear 0.2s,box-shadow linear 0.2s;
}

.searchandfilter[data-sf-form-id="2545"] li.sf-field-category {
    width: 20% !important;
}

.searchandfilter[data-sf-form-id="2545"] select.sf-input-select {
    width: 100%;
}

Hope can help a lot of people that are trying to have an horizontal view for S&F.

Now I just need to edit the @media CSS for smartphones and tablets.

Thanks to you guys Ross and you really help us a lot.
Wanted to give something back.